Home / 31,572.07-47,345.73-11,839.87

Finding the Fourth Proportional to 31,572.07, 47,345.73 and 11,839.87

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Solution

The fourth proportional to 31,572.07, 47,345.73 and 11,839.87 is: 17,755.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,572.07 : 47,345.73 = 11,839.87 : x
  2. Step 2: Convert to fraction form
    31,572.07/47,345.73 = 11,839.87/x
  3. Step 3: Cross multiply
    31,572.07x = 47,345.73 × 11,839.87
  4. Step 4: Simplify right side
    31,572.07x = 560,567,288.26
  5. Step 5: Solve for x
    x = 560,567,288.26/31,572.07
  6. Step 6: Final answer
    x = 17,755.16

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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.