Home / 21,566.01-29,759.49-12,132.75

Finding the Fourth Proportional to 21,566.01, 29,759.49 and 12,132.75

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Solution

The fourth proportional to 21,566.01, 29,759.49 and 12,132.75 is: 16,742.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,566.01 : 29,759.49 = 12,132.75 : x
  2. Step 2: Convert to fraction form
    21,566.01/29,759.49 = 12,132.75/x
  3. Step 3: Cross multiply
    21,566.01x = 29,759.49 × 12,132.75
  4. Step 4: Simplify right side
    21,566.01x = 361,064,452.30
  5. Step 5: Solve for x
    x = 361,064,452.30/21,566.01
  6. Step 6: Final answer
    x = 16,742.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.