Home / 38,632.80-57,934.08-13,663.20

Finding the Fourth Proportional to 38,632.80, 57,934.08 and 13,663.20

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Solution

The fourth proportional to 38,632.80, 57,934.08 and 13,663.20 is: 20,489.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,632.80 : 57,934.08 = 13,663.20 : x
  2. Step 2: Convert to fraction form
    38,632.80/57,934.08 = 13,663.20/x
  3. Step 3: Cross multiply
    38,632.80x = 57,934.08 × 13,663.20
  4. Step 4: Simplify right side
    38,632.80x = 791,564,921.86
  5. Step 5: Solve for x
    x = 791,564,921.86/38,632.80
  6. Step 6: Final answer
    x = 20,489.45

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.