Home / 42,366.38-63,508.23-20,173.78

Finding the Fourth Proportional to 42,366.38, 63,508.23 and 20,173.78

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Solution

The fourth proportional to 42,366.38, 63,508.23 and 20,173.78 is: 30,240.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,366.38 : 63,508.23 = 20,173.78 : x
  2. Step 2: Convert to fraction form
    42,366.38/63,508.23 = 20,173.78/x
  3. Step 3: Cross multiply
    42,366.38x = 63,508.23 × 20,173.78
  4. Step 4: Simplify right side
    42,366.38x = 1,281,201,060.21
  5. Step 5: Solve for x
    x = 1,281,201,060.21/42,366.38
  6. Step 6: Final answer
    x = 30,240.98

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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.