Home / 21,404.40-32,092.20-9,711.60

Finding the Fourth Proportional to 21,404.40, 32,092.20 and 9,711.60

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Solution

The fourth proportional to 21,404.40, 32,092.20 and 9,711.60 is: 14,560.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,404.40 : 32,092.20 = 9,711.60 : x
  2. Step 2: Convert to fraction form
    21,404.40/32,092.20 = 9,711.60/x
  3. Step 3: Cross multiply
    21,404.40x = 32,092.20 × 9,711.60
  4. Step 4: Simplify right side
    21,404.40x = 311,666,609.52
  5. Step 5: Solve for x
    x = 311,666,609.52/21,404.40
  6. Step 6: Final answer
    x = 14,560.87

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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.