Home / 22,151.06-33,220.81-15,129.88

Finding the Fourth Proportional to 22,151.06, 33,220.81 and 15,129.88

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Solution

The fourth proportional to 22,151.06, 33,220.81 and 15,129.88 is: 22,690.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,151.06 : 33,220.81 = 15,129.88 : x
  2. Step 2: Convert to fraction form
    22,151.06/33,220.81 = 15,129.88/x
  3. Step 3: Cross multiply
    22,151.06x = 33,220.81 × 15,129.88
  4. Step 4: Simplify right side
    22,151.06x = 502,626,868.80
  5. Step 5: Solve for x
    x = 502,626,868.80/22,151.06
  6. Step 6: Final answer
    x = 22,690.87

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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.