Home / 21,062.20-29,065.90-11,502.18

Finding the Fourth Proportional to 21,062.20, 29,065.90 and 11,502.18

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Solution

The fourth proportional to 21,062.20, 29,065.90 and 11,502.18 is: 15,873.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,062.20 : 29,065.90 = 11,502.18 : x
  2. Step 2: Convert to fraction form
    21,062.20/29,065.90 = 11,502.18/x
  3. Step 3: Cross multiply
    21,062.20x = 29,065.90 × 11,502.18
  4. Step 4: Simplify right side
    21,062.20x = 334,321,213.66
  5. Step 5: Solve for x
    x = 334,321,213.66/21,062.20
  6. Step 6: Final answer
    x = 15,873.04

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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.