Home / 42,375.79-63,561.63-15,726.97

Finding the Fourth Proportional to 42,375.79, 63,561.63 and 15,726.97

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Solution

The fourth proportional to 42,375.79, 63,561.63 and 15,726.97 is: 23,589.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,375.79 : 63,561.63 = 15,726.97 : x
  2. Step 2: Convert to fraction form
    42,375.79/63,561.63 = 15,726.97/x
  3. Step 3: Cross multiply
    42,375.79x = 63,561.63 × 15,726.97
  4. Step 4: Simplify right side
    42,375.79x = 999,631,769.53
  5. Step 5: Solve for x
    x = 999,631,769.53/42,375.79
  6. Step 6: Final answer
    x = 23,589.69

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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.