Home / 31,913.64-47,854.38-18,590.88

Finding the Fourth Proportional to 31,913.64, 47,854.38 and 18,590.88

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Solution

The fourth proportional to 31,913.64, 47,854.38 and 18,590.88 is: 27,876.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,913.64 : 47,854.38 = 18,590.88 : x
  2. Step 2: Convert to fraction form
    31,913.64/47,854.38 = 18,590.88/x
  3. Step 3: Cross multiply
    31,913.64x = 47,854.38 × 18,590.88
  4. Step 4: Simplify right side
    31,913.64x = 889,655,036.05
  5. Step 5: Solve for x
    x = 889,655,036.05/31,913.64
  6. Step 6: Final answer
    x = 27,876.95

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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.