Home / 42,002.10-63,008.55-20,952.90

Finding the Fourth Proportional to 42,002.10, 63,008.55 and 20,952.90

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Solution

The fourth proportional to 42,002.10, 63,008.55 and 20,952.90 is: 31,432.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,002.10 : 63,008.55 = 20,952.90 : x
  2. Step 2: Convert to fraction form
    42,002.10/63,008.55 = 20,952.90/x
  3. Step 3: Cross multiply
    42,002.10x = 63,008.55 × 20,952.90
  4. Step 4: Simplify right side
    42,002.10x = 1,320,211,847.30
  5. Step 5: Solve for x
    x = 1,320,211,847.30/42,002.10
  6. Step 6: Final answer
    x = 31,432.04

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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.