Home / 21,073.20-29,079.96-11,641.44

Finding the Fourth Proportional to 21,073.20, 29,079.96 and 11,641.44

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Solution

The fourth proportional to 21,073.20, 29,079.96 and 11,641.44 is: 16,064.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,073.20 : 29,079.96 = 11,641.44 : x
  2. Step 2: Convert to fraction form
    21,073.20/29,079.96 = 11,641.44/x
  3. Step 3: Cross multiply
    21,073.20x = 29,079.96 × 11,641.44
  4. Step 4: Simplify right side
    21,073.20x = 338,532,609.54
  5. Step 5: Solve for x
    x = 338,532,609.54/21,073.20
  6. Step 6: Final answer
    x = 16,064.60

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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.