Home / 23,108.80-31,890.14-12,498.43

Finding the Fourth Proportional to 23,108.80, 31,890.14 and 12,498.43

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Solution

The fourth proportional to 23,108.80, 31,890.14 and 12,498.43 is: 17,247.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,108.80 : 31,890.14 = 12,498.43 : x
  2. Step 2: Convert to fraction form
    23,108.80/31,890.14 = 12,498.43/x
  3. Step 3: Cross multiply
    23,108.80x = 31,890.14 × 12,498.43
  4. Step 4: Simplify right side
    23,108.80x = 398,576,460.54
  5. Step 5: Solve for x
    x = 398,576,460.54/23,108.80
  6. Step 6: Final answer
    x = 17,247.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.