Home / 19,791.90-29,687.85-5,000.86

Finding the Fourth Proportional to 19,791.90, 29,687.85 and 5,000.86

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Solution

The fourth proportional to 19,791.90, 29,687.85 and 5,000.86 is: 7,501.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,791.90 : 29,687.85 = 5,000.86 : x
  2. Step 2: Convert to fraction form
    19,791.90/29,687.85 = 5,000.86/x
  3. Step 3: Cross multiply
    19,791.90x = 29,687.85 × 5,000.86
  4. Step 4: Simplify right side
    19,791.90x = 148,464,781.55
  5. Step 5: Solve for x
    x = 148,464,781.55/19,791.90
  6. Step 6: Final answer
    x = 7,501.29

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Double scale
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Similar ratio
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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.