Home / 31,546.14-47,319-11,810.70

Finding the Fourth Proportional to 31,546.14, 47,319 and 11,810.70

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Solution

The fourth proportional to 31,546.14, 47,319 and 11,810.70 is: 17,715.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,546.14 : 47,319 = 11,810.70 : x
  2. Step 2: Convert to fraction form
    31,546.14/47,319 = 11,810.70/x
  3. Step 3: Cross multiply
    31,546.14x = 47,319 × 11,810.70
  4. Step 4: Simplify right side
    31,546.14x = 558,870,513.30
  5. Step 5: Solve for x
    x = 558,870,513.30/31,546.14
  6. Step 6: Final answer
    x = 17,715.97

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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.