Home / 31,801.28-43,882.52-18,376.86

Finding the Fourth Proportional to 31,801.28, 43,882.52 and 18,376.86

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Solution

The fourth proportional to 31,801.28, 43,882.52 and 18,376.86 is: 25,358.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,801.28 : 43,882.52 = 18,376.86 : x
  2. Step 2: Convert to fraction form
    31,801.28/43,882.52 = 18,376.86/x
  3. Step 3: Cross multiply
    31,801.28x = 43,882.52 × 18,376.86
  4. Step 4: Simplify right side
    31,801.28x = 806,422,926.49
  5. Step 5: Solve for x
    x = 806,422,926.49/31,801.28
  6. Step 6: Final answer
    x = 25,358.19

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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.