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Finding the Fourth Proportional to 22,750.20, 34,076.70 and 18,862.20

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Solution

The fourth proportional to 22,750.20, 34,076.70 and 18,862.20 is: 28,253.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,750.20 : 34,076.70 = 18,862.20 : x
  2. Step 2: Convert to fraction form
    22,750.20/34,076.70 = 18,862.20/x
  3. Step 3: Cross multiply
    22,750.20x = 34,076.70 × 18,862.20
  4. Step 4: Simplify right side
    22,750.20x = 642,761,530.74
  5. Step 5: Solve for x
    x = 642,761,530.74/22,750.20
  6. Step 6: Final answer
    x = 28,253.01

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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.