Home / 39,963.28-59,947.28-10,380.36

Finding the Fourth Proportional to 39,963.28, 59,947.28 and 10,380.36

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Solution

The fourth proportional to 39,963.28, 59,947.28 and 10,380.36 is: 15,571.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,963.28 : 59,947.28 = 10,380.36 : x
  2. Step 2: Convert to fraction form
    39,963.28/59,947.28 = 10,380.36/x
  3. Step 3: Cross multiply
    39,963.28x = 59,947.28 × 10,380.36
  4. Step 4: Simplify right side
    39,963.28x = 622,274,347.42
  5. Step 5: Solve for x
    x = 622,274,347.42/39,963.28
  6. Step 6: Final answer
    x = 15,571.15

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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.