Home / 39,505.28-54,517.32-21,600.32

Finding the Fourth Proportional to 39,505.28, 54,517.32 and 21,600.32

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Solution

The fourth proportional to 39,505.28, 54,517.32 and 21,600.32 is: 29,808.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,505.28 : 54,517.32 = 21,600.32 : x
  2. Step 2: Convert to fraction form
    39,505.28/54,517.32 = 21,600.32/x
  3. Step 3: Cross multiply
    39,505.28x = 54,517.32 × 21,600.32
  4. Step 4: Simplify right side
    39,505.28x = 1,177,591,557.54
  5. Step 5: Solve for x
    x = 1,177,591,557.54/39,505.28
  6. Step 6: Final answer
    x = 29,808.46

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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.