Home / 31,891.93-47,841.13-12,187.06

Finding the Fourth Proportional to 31,891.93, 47,841.13 and 12,187.06

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Solution

The fourth proportional to 31,891.93, 47,841.13 and 12,187.06 is: 18,281.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,891.93 : 47,841.13 = 12,187.06 : x
  2. Step 2: Convert to fraction form
    31,891.93/47,841.13 = 12,187.06/x
  3. Step 3: Cross multiply
    31,891.93x = 47,841.13 × 12,187.06
  4. Step 4: Simplify right side
    31,891.93x = 583,042,617.41
  5. Step 5: Solve for x
    x = 583,042,617.41/31,891.93
  6. Step 6: Final answer
    x = 18,281.82

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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.