Home / 22,593.12-31,177.67-13,639.78

Finding the Fourth Proportional to 22,593.12, 31,177.67 and 13,639.78

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Solution

The fourth proportional to 22,593.12, 31,177.67 and 13,639.78 is: 18,822.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,593.12 : 31,177.67 = 13,639.78 : x
  2. Step 2: Convert to fraction form
    22,593.12/31,177.67 = 13,639.78/x
  3. Step 3: Cross multiply
    22,593.12x = 31,177.67 × 13,639.78
  4. Step 4: Simplify right side
    22,593.12x = 425,256,559.71
  5. Step 5: Solve for x
    x = 425,256,559.71/22,593.12
  6. Step 6: Final answer
    x = 18,822.39

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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.