Home / 31,881.64-47,785.98-15,863.08

Finding the Fourth Proportional to 31,881.64, 47,785.98 and 15,863.08

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Solution

The fourth proportional to 31,881.64, 47,785.98 and 15,863.08 is: 23,776.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,881.64 : 47,785.98 = 15,863.08 : x
  2. Step 2: Convert to fraction form
    31,881.64/47,785.98 = 15,863.08/x
  3. Step 3: Cross multiply
    31,881.64x = 47,785.98 × 15,863.08
  4. Step 4: Simplify right side
    31,881.64x = 758,032,823.62
  5. Step 5: Solve for x
    x = 758,032,823.62/31,881.64
  6. Step 6: Final answer
    x = 23,776.47

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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.