Home / 31,918.32-47,855.27-14,139.33

Finding the Fourth Proportional to 31,918.32, 47,855.27 and 14,139.33

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Solution

The fourth proportional to 31,918.32, 47,855.27 and 14,139.33 is: 21,199.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,918.32 : 47,855.27 = 14,139.33 : x
  2. Step 2: Convert to fraction form
    31,918.32/47,855.27 = 14,139.33/x
  3. Step 3: Cross multiply
    31,918.32x = 47,855.27 × 14,139.33
  4. Step 4: Simplify right side
    31,918.32x = 676,641,310.66
  5. Step 5: Solve for x
    x = 676,641,310.66/31,918.32
  6. Step 6: Final answer
    x = 21,199.15

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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.