Home / 21,599.38-29,817.13-15,231.16

Finding the Fourth Proportional to 21,599.38, 29,817.13 and 15,231.16

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Solution

The fourth proportional to 21,599.38, 29,817.13 and 15,231.16 is: 21,026.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,599.38 : 29,817.13 = 15,231.16 : x
  2. Step 2: Convert to fraction form
    21,599.38/29,817.13 = 15,231.16/x
  3. Step 3: Cross multiply
    21,599.38x = 29,817.13 × 15,231.16
  4. Step 4: Simplify right side
    21,599.38x = 454,149,328.69
  5. Step 5: Solve for x
    x = 454,149,328.69/21,599.38
  6. Step 6: Final answer
    x = 21,026.04

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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.