Home / 22,556.34-31,131.54-13,130.46

Finding the Fourth Proportional to 22,556.34, 31,131.54 and 13,130.46

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Solution

The fourth proportional to 22,556.34, 31,131.54 and 13,130.46 is: 18,122.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,556.34 : 31,131.54 = 13,130.46 : x
  2. Step 2: Convert to fraction form
    22,556.34/31,131.54 = 13,130.46/x
  3. Step 3: Cross multiply
    22,556.34x = 31,131.54 × 13,130.46
  4. Step 4: Simplify right side
    22,556.34x = 408,771,440.71
  5. Step 5: Solve for x
    x = 408,771,440.71/22,556.34
  6. Step 6: Final answer
    x = 18,122.24

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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.