Home / 21,306.39-31,959.57-5,724.01

Finding the Fourth Proportional to 21,306.39, 31,959.57 and 5,724.01

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Solution

The fourth proportional to 21,306.39, 31,959.57 and 5,724.01 is: 8,586.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,306.39 : 31,959.57 = 5,724.01 : x
  2. Step 2: Convert to fraction form
    21,306.39/31,959.57 = 5,724.01/x
  3. Step 3: Cross multiply
    21,306.39x = 31,959.57 × 5,724.01
  4. Step 4: Simplify right side
    21,306.39x = 182,936,996.66
  5. Step 5: Solve for x
    x = 182,936,996.66/21,306.39
  6. Step 6: Final answer
    x = 8,586.02

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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.