Home / 22,557.64-31,132.23-13,126.19

Finding the Fourth Proportional to 22,557.64, 31,132.23 and 13,126.19

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Solution

The fourth proportional to 22,557.64, 31,132.23 and 13,126.19 is: 18,115.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,557.64 : 31,132.23 = 13,126.19 : x
  2. Step 2: Convert to fraction form
    22,557.64/31,132.23 = 13,126.19/x
  3. Step 3: Cross multiply
    22,557.64x = 31,132.23 × 13,126.19
  4. Step 4: Simplify right side
    22,557.64x = 408,647,566.10
  5. Step 5: Solve for x
    x = 408,647,566.10/22,557.64
  6. Step 6: Final answer
    x = 18,115.71

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Half scale
Find fourth proportional to 45,115.28, 62,264.46 and 26,252.38
Double scale
Find fourth proportional to 22,558.64, 31,133.61 and 13,127.19
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.