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Finding the Fourth Proportional to 38,671.20, 57,963.60 and 22,039.20

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Solution

The fourth proportional to 38,671.20, 57,963.60 and 22,039.20 is: 33,034.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,671.20 : 57,963.60 = 22,039.20 : x
  2. Step 2: Convert to fraction form
    38,671.20/57,963.60 = 22,039.20/x
  3. Step 3: Cross multiply
    38,671.20x = 57,963.60 × 22,039.20
  4. Step 4: Simplify right side
    38,671.20x = 1,277,471,373.12
  5. Step 5: Solve for x
    x = 1,277,471,373.12/38,671.20
  6. Step 6: Final answer
    x = 33,034.18

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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.