Home / 42,358.45-63,496.35-20,165.86

Finding the Fourth Proportional to 42,358.45, 63,496.35 and 20,165.86

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Solution

The fourth proportional to 42,358.45, 63,496.35 and 20,165.86 is: 30,229.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,358.45 : 63,496.35 = 20,165.86 : x
  2. Step 2: Convert to fraction form
    42,358.45/63,496.35 = 20,165.86/x
  3. Step 3: Cross multiply
    42,358.45x = 63,496.35 × 20,165.86
  4. Step 4: Simplify right side
    42,358.45x = 1,280,458,504.61
  5. Step 5: Solve for x
    x = 1,280,458,504.61/42,358.45
  6. Step 6: Final answer
    x = 30,229.12

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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.