Home / 42,543.32-63,812.39-18,843.91

Finding the Fourth Proportional to 42,543.32, 63,812.39 and 18,843.91

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Solution

The fourth proportional to 42,543.32, 63,812.39 and 18,843.91 is: 28,264.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,543.32 : 63,812.39 = 18,843.91 : x
  2. Step 2: Convert to fraction form
    42,543.32/63,812.39 = 18,843.91/x
  3. Step 3: Cross multiply
    42,543.32x = 63,812.39 × 18,843.91
  4. Step 4: Simplify right side
    42,543.32x = 1,202,474,934.04
  5. Step 5: Solve for x
    x = 1,202,474,934.04/42,543.32
  6. Step 6: Final answer
    x = 28,264.72

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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.