Home / 42,003.36-63,013.68-28,861.92

Finding the Fourth Proportional to 42,003.36, 63,013.68 and 28,861.92

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Solution

The fourth proportional to 42,003.36, 63,013.68 and 28,861.92 is: 43,298.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,003.36 : 63,013.68 = 28,861.92 : x
  2. Step 2: Convert to fraction form
    42,003.36/63,013.68 = 28,861.92/x
  3. Step 3: Cross multiply
    42,003.36x = 63,013.68 × 28,861.92
  4. Step 4: Simplify right side
    42,003.36x = 1,818,695,791.07
  5. Step 5: Solve for x
    x = 1,818,695,791.07/42,003.36
  6. Step 6: Final answer
    x = 43,298.82

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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.