Home / 31,610.43-47,422.71-11,889.16

Finding the Fourth Proportional to 31,610.43, 47,422.71 and 11,889.16

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Solution

The fourth proportional to 31,610.43, 47,422.71 and 11,889.16 is: 17,836.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,610.43 : 47,422.71 = 11,889.16 : x
  2. Step 2: Convert to fraction form
    31,610.43/47,422.71 = 11,889.16/x
  3. Step 3: Cross multiply
    31,610.43x = 47,422.71 × 11,889.16
  4. Step 4: Simplify right side
    31,610.43x = 563,816,023.68
  5. Step 5: Solve for x
    x = 563,816,023.68/31,610.43
  6. Step 6: Final answer
    x = 17,836.39

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1.5x scale

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.