Home / 35,456.35-48,921.17-20,139.49

Finding the Fourth Proportional to 35,456.35, 48,921.17 and 20,139.49

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Solution

The fourth proportional to 35,456.35, 48,921.17 and 20,139.49 is: 27,787.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,456.35 : 48,921.17 = 20,139.49 : x
  2. Step 2: Convert to fraction form
    35,456.35/48,921.17 = 20,139.49/x
  3. Step 3: Cross multiply
    35,456.35x = 48,921.17 × 20,139.49
  4. Step 4: Simplify right side
    35,456.35x = 985,247,414.00
  5. Step 5: Solve for x
    x = 985,247,414.00/35,456.35
  6. Step 6: Final answer
    x = 27,787.62

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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.