Home / 42,239.26-63,358.89-12,656.44

Finding the Fourth Proportional to 42,239.26, 63,358.89 and 12,656.44

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Solution

The fourth proportional to 42,239.26, 63,358.89 and 12,656.44 is: 18,984.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,239.26 : 63,358.89 = 12,656.44 : x
  2. Step 2: Convert to fraction form
    42,239.26/63,358.89 = 12,656.44/x
  3. Step 3: Cross multiply
    42,239.26x = 63,358.89 × 12,656.44
  4. Step 4: Simplify right side
    42,239.26x = 801,897,989.75
  5. Step 5: Solve for x
    x = 801,897,989.75/42,239.26
  6. Step 6: Final answer
    x = 18,984.66

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1.5x scale

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.