Home / 39,517.52-54,533.41-21,612.47

Finding the Fourth Proportional to 39,517.52, 54,533.41 and 21,612.47

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Solution

The fourth proportional to 39,517.52, 54,533.41 and 21,612.47 is: 29,824.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,517.52 : 54,533.41 = 21,612.47 : x
  2. Step 2: Convert to fraction form
    39,517.52/54,533.41 = 21,612.47/x
  3. Step 3: Cross multiply
    39,517.52x = 54,533.41 × 21,612.47
  4. Step 4: Simplify right side
    39,517.52x = 1,178,601,360.92
  5. Step 5: Solve for x
    x = 1,178,601,360.92/39,517.52
  6. Step 6: Final answer
    x = 29,824.78

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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.