Home / 22,129.67-30,538.97-13,177.47

Finding the Fourth Proportional to 22,129.67, 30,538.97 and 13,177.47

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Solution

The fourth proportional to 22,129.67, 30,538.97 and 13,177.47 is: 18,184.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,129.67 : 30,538.97 = 13,177.47 : x
  2. Step 2: Convert to fraction form
    22,129.67/30,538.97 = 13,177.47/x
  3. Step 3: Cross multiply
    22,129.67x = 30,538.97 × 13,177.47
  4. Step 4: Simplify right side
    22,129.67x = 402,426,295.12
  5. Step 5: Solve for x
    x = 402,426,295.12/22,129.67
  6. Step 6: Final answer
    x = 18,184.92

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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.