Home / 42,587.36-63,835.17-20,353.47

Finding the Fourth Proportional to 42,587.36, 63,835.17 and 20,353.47

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Solution

The fourth proportional to 42,587.36, 63,835.17 and 20,353.47 is: 30,508.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,587.36 : 63,835.17 = 20,353.47 : x
  2. Step 2: Convert to fraction form
    42,587.36/63,835.17 = 20,353.47/x
  3. Step 3: Cross multiply
    42,587.36x = 63,835.17 × 20,353.47
  4. Step 4: Simplify right side
    42,587.36x = 1,299,267,217.54
  5. Step 5: Solve for x
    x = 1,299,267,217.54/42,587.36
  6. Step 6: Final answer
    x = 30,508.28

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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.