Home / 47,909.90-71,861.48-17,918.42

Finding the Fourth Proportional to 47,909.90, 71,861.48 and 17,918.42

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Solution

The fourth proportional to 47,909.90, 71,861.48 and 17,918.42 is: 26,876.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,909.90 : 71,861.48 = 17,918.42 : x
  2. Step 2: Convert to fraction form
    47,909.90/71,861.48 = 17,918.42/x
  3. Step 3: Cross multiply
    47,909.90x = 71,861.48 × 17,918.42
  4. Step 4: Simplify right side
    47,909.90x = 1,287,644,180.46
  5. Step 5: Solve for x
    x = 1,287,644,180.46/47,909.90
  6. Step 6: Final answer
    x = 26,876.37

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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.