Home / 22,553.63-31,126.71-13,122.19

Finding the Fourth Proportional to 22,553.63, 31,126.71 and 13,122.19

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Solution

The fourth proportional to 22,553.63, 31,126.71 and 13,122.19 is: 18,110.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,553.63 : 31,126.71 = 13,122.19 : x
  2. Step 2: Convert to fraction form
    22,553.63/31,126.71 = 13,122.19/x
  3. Step 3: Cross multiply
    22,553.63x = 31,126.71 × 13,122.19
  4. Step 4: Simplify right side
    22,553.63x = 408,450,602.69
  5. Step 5: Solve for x
    x = 408,450,602.69/22,553.63
  6. Step 6: Final answer
    x = 18,110.19

Related Problems

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Half scale
Find fourth proportional to 45,107.26, 62,253.42 and 26,244.38
Double scale
Find fourth proportional to 22,554.63, 31,128.09 and 13,123.19
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.