Home / 42,228.72-63,360-15,940.92

Finding the Fourth Proportional to 42,228.72, 63,360 and 15,940.92

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Solution

The fourth proportional to 42,228.72, 63,360 and 15,940.92 is: 23,917.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,228.72 : 63,360 = 15,940.92 : x
  2. Step 2: Convert to fraction form
    42,228.72/63,360 = 15,940.92/x
  3. Step 3: Cross multiply
    42,228.72x = 63,360 × 15,940.92
  4. Step 4: Simplify right side
    42,228.72x = 1,010,016,691.20
  5. Step 5: Solve for x
    x = 1,010,016,691.20/42,228.72
  6. Step 6: Final answer
    x = 23,917.77

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1.5x scale

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.