Home / 21,781.20-32,667.87-5,770.85

Finding the Fourth Proportional to 21,781.20, 32,667.87 and 5,770.85

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Solution

The fourth proportional to 21,781.20, 32,667.87 and 5,770.85 is: 8,655.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,781.20 : 32,667.87 = 5,770.85 : x
  2. Step 2: Convert to fraction form
    21,781.20/32,667.87 = 5,770.85/x
  3. Step 3: Cross multiply
    21,781.20x = 32,667.87 × 5,770.85
  4. Step 4: Simplify right side
    21,781.20x = 188,521,235.89
  5. Step 5: Solve for x
    x = 188,521,235.89/21,781.20
  6. Step 6: Final answer
    x = 8,655.23

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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.