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Finding the Fourth Proportional to 22,304.28, 30,769.02 and 18,766.20

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Solution

The fourth proportional to 22,304.28, 30,769.02 and 18,766.20 is: 25,888.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,304.28 : 30,769.02 = 18,766.20 : x
  2. Step 2: Convert to fraction form
    22,304.28/30,769.02 = 18,766.20/x
  3. Step 3: Cross multiply
    22,304.28x = 30,769.02 × 18,766.20
  4. Step 4: Simplify right side
    22,304.28x = 577,417,583.12
  5. Step 5: Solve for x
    x = 577,417,583.12/22,304.28
  6. Step 6: Final answer
    x = 25,888.20

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1.5x scale

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.