Home / 21,132.56-29,162.94-11,701.13

Finding the Fourth Proportional to 21,132.56, 29,162.94 and 11,701.13

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Solution

The fourth proportional to 21,132.56, 29,162.94 and 11,701.13 is: 16,147.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,132.56 : 29,162.94 = 11,701.13 : x
  2. Step 2: Convert to fraction form
    21,132.56/29,162.94 = 11,701.13/x
  3. Step 3: Cross multiply
    21,132.56x = 29,162.94 × 11,701.13
  4. Step 4: Simplify right side
    21,132.56x = 341,239,162.43
  5. Step 5: Solve for x
    x = 341,239,162.43/21,132.56
  6. Step 6: Final answer
    x = 16,147.55

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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.