Home / 42,151.02-63,242.92-18,761.46

Finding the Fourth Proportional to 42,151.02, 63,242.92 and 18,761.46

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Solution

The fourth proportional to 42,151.02, 63,242.92 and 18,761.46 is: 28,149.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,151.02 : 63,242.92 = 18,761.46 : x
  2. Step 2: Convert to fraction form
    42,151.02/63,242.92 = 18,761.46/x
  3. Step 3: Cross multiply
    42,151.02x = 63,242.92 × 18,761.46
  4. Step 4: Simplify right side
    42,151.02x = 1,186,529,513.86
  5. Step 5: Solve for x
    x = 1,186,529,513.86/42,151.02
  6. Step 6: Final answer
    x = 28,149.49

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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.