Home / 15,251.43-21,049.70-11,071.83

Finding the Fourth Proportional to 15,251.43, 21,049.70 and 11,071.83

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Solution

The fourth proportional to 15,251.43, 21,049.70 and 11,071.83 is: 15,281.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,251.43 : 21,049.70 = 11,071.83 : x
  2. Step 2: Convert to fraction form
    15,251.43/21,049.70 = 11,071.83/x
  3. Step 3: Cross multiply
    15,251.43x = 21,049.70 × 11,071.83
  4. Step 4: Simplify right side
    15,251.43x = 233,058,644.59
  5. Step 5: Solve for x
    x = 233,058,644.59/15,251.43
  6. Step 6: Final answer
    x = 15,281.10

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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.