Home / 31,886.64-47,833.80-10,540.08

Finding the Fourth Proportional to 31,886.64, 47,833.80 and 10,540.08

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Solution

The fourth proportional to 31,886.64, 47,833.80 and 10,540.08 is: 15,811.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,886.64 : 47,833.80 = 10,540.08 : x
  2. Step 2: Convert to fraction form
    31,886.64/47,833.80 = 10,540.08/x
  3. Step 3: Cross multiply
    31,886.64x = 47,833.80 × 10,540.08
  4. Step 4: Simplify right side
    31,886.64x = 504,172,078.70
  5. Step 5: Solve for x
    x = 504,172,078.70/31,886.64
  6. Step 6: Final answer
    x = 15,811.39

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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.