Home / 21,388.29-32,082.33-5,805.90

Finding the Fourth Proportional to 21,388.29, 32,082.33 and 5,805.90

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Solution

The fourth proportional to 21,388.29, 32,082.33 and 5,805.90 is: 8,708.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,388.29 : 32,082.33 = 5,805.90 : x
  2. Step 2: Convert to fraction form
    21,388.29/32,082.33 = 5,805.90/x
  3. Step 3: Cross multiply
    21,388.29x = 32,082.33 × 5,805.90
  4. Step 4: Simplify right side
    21,388.29x = 186,266,799.75
  5. Step 5: Solve for x
    x = 186,266,799.75/21,388.29
  6. Step 6: Final answer
    x = 8,708.82

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.