Home / 31,863.52-47,729.66-18,684.11

Finding the Fourth Proportional to 31,863.52, 47,729.66 and 18,684.11

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Solution

The fourth proportional to 31,863.52, 47,729.66 and 18,684.11 is: 27,987.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,863.52 : 47,729.66 = 18,684.11 : x
  2. Step 2: Convert to fraction form
    31,863.52/47,729.66 = 18,684.11/x
  3. Step 3: Cross multiply
    31,863.52x = 47,729.66 × 18,684.11
  4. Step 4: Simplify right side
    31,863.52x = 891,786,243.61
  5. Step 5: Solve for x
    x = 891,786,243.61/31,863.52
  6. Step 6: Final answer
    x = 27,987.69

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1.5x scale

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.