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Finding the Fourth Proportional to 22,728.80, 34,098.58 and 7,146.44

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Solution

The fourth proportional to 22,728.80, 34,098.58 and 7,146.44 is: 10,721.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,728.80 : 34,098.58 = 7,146.44 : x
  2. Step 2: Convert to fraction form
    22,728.80/34,098.58 = 7,146.44/x
  3. Step 3: Cross multiply
    22,728.80x = 34,098.58 × 7,146.44
  4. Step 4: Simplify right side
    22,728.80x = 243,683,456.06
  5. Step 5: Solve for x
    x = 243,683,456.06/22,728.80
  6. Step 6: Final answer
    x = 10,721.35

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1.5x scale

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.