Home / 26,353.20-36,380.64-20,371.36

Finding the Fourth Proportional to 26,353.20, 36,380.64 and 20,371.36

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Solution

The fourth proportional to 26,353.20, 36,380.64 and 20,371.36 is: 28,122.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,353.20 : 36,380.64 = 20,371.36 : x
  2. Step 2: Convert to fraction form
    26,353.20/36,380.64 = 20,371.36/x
  3. Step 3: Cross multiply
    26,353.20x = 36,380.64 × 20,371.36
  4. Step 4: Simplify right side
    26,353.20x = 741,123,114.47
  5. Step 5: Solve for x
    x = 741,123,114.47/26,353.20
  6. Step 6: Final answer
    x = 28,122.70

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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.