Home / 39,517.28-54,533.92-21,612.36

Finding the Fourth Proportional to 39,517.28, 54,533.92 and 21,612.36

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Solution

The fourth proportional to 39,517.28, 54,533.92 and 21,612.36 is: 29,825.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,517.28 : 54,533.92 = 21,612.36 : x
  2. Step 2: Convert to fraction form
    39,517.28/54,533.92 = 21,612.36/x
  3. Step 3: Cross multiply
    39,517.28x = 54,533.92 × 21,612.36
  4. Step 4: Simplify right side
    39,517.28x = 1,178,606,711.25
  5. Step 5: Solve for x
    x = 1,178,606,711.25/39,517.28
  6. Step 6: Final answer
    x = 29,825.10

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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.