Home / 21,825.20-32,737.99-11,959.09

Finding the Fourth Proportional to 21,825.20, 32,737.99 and 11,959.09

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Solution

The fourth proportional to 21,825.20, 32,737.99 and 11,959.09 is: 17,938.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,825.20 : 32,737.99 = 11,959.09 : x
  2. Step 2: Convert to fraction form
    21,825.20/32,737.99 = 11,959.09/x
  3. Step 3: Cross multiply
    21,825.20x = 32,737.99 × 11,959.09
  4. Step 4: Simplify right side
    21,825.20x = 391,516,613.21
  5. Step 5: Solve for x
    x = 391,516,613.21/21,825.20
  6. Step 6: Final answer
    x = 17,938.74

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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.