Home / 31,546.16-47,318.16-7,853.66

Finding the Fourth Proportional to 31,546.16, 47,318.16 and 7,853.66

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Solution

The fourth proportional to 31,546.16, 47,318.16 and 7,853.66 is: 11,780.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,546.16 : 47,318.16 = 7,853.66 : x
  2. Step 2: Convert to fraction form
    31,546.16/47,318.16 = 7,853.66/x
  3. Step 3: Cross multiply
    31,546.16x = 47,318.16 × 7,853.66
  4. Step 4: Simplify right side
    31,546.16x = 371,620,740.47
  5. Step 5: Solve for x
    x = 371,620,740.47/31,546.16
  6. Step 6: Final answer
    x = 11,780.22

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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.