Home / 26,781.50-40,115.74-21,487.85

Finding the Fourth Proportional to 26,781.50, 40,115.74 and 21,487.85

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Solution

The fourth proportional to 26,781.50, 40,115.74 and 21,487.85 is: 32,186.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,781.50 : 40,115.74 = 21,487.85 : x
  2. Step 2: Convert to fraction form
    26,781.50/40,115.74 = 21,487.85/x
  3. Step 3: Cross multiply
    26,781.50x = 40,115.74 × 21,487.85
  4. Step 4: Simplify right side
    26,781.50x = 862,001,050.33
  5. Step 5: Solve for x
    x = 862,001,050.33/26,781.50
  6. Step 6: Final answer
    x = 32,186.43

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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.