Home / 42,098.88-63,154.08-18,724.80

Finding the Fourth Proportional to 42,098.88, 63,154.08 and 18,724.80

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Solution

The fourth proportional to 42,098.88, 63,154.08 and 18,724.80 is: 28,089.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,098.88 : 63,154.08 = 18,724.80 : x
  2. Step 2: Convert to fraction form
    42,098.88/63,154.08 = 18,724.80/x
  3. Step 3: Cross multiply
    42,098.88x = 63,154.08 × 18,724.80
  4. Step 4: Simplify right side
    42,098.88x = 1,182,547,517.18
  5. Step 5: Solve for x
    x = 1,182,547,517.18/42,098.88
  6. Step 6: Final answer
    x = 28,089.76

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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.