Home / 42,516.88-63,781.26-18,822.58

Finding the Fourth Proportional to 42,516.88, 63,781.26 and 18,822.58

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Solution

The fourth proportional to 42,516.88, 63,781.26 and 18,822.58 is: 28,236.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,516.88 : 63,781.26 = 18,822.58 : x
  2. Step 2: Convert to fraction form
    42,516.88/63,781.26 = 18,822.58/x
  3. Step 3: Cross multiply
    42,516.88x = 63,781.26 × 18,822.58
  4. Step 4: Simplify right side
    42,516.88x = 1,200,527,868.85
  5. Step 5: Solve for x
    x = 1,200,527,868.85/42,516.88
  6. Step 6: Final answer
    x = 28,236.50

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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.