Home / 31,620.17-47,422.97-11,900.72

Finding the Fourth Proportional to 31,620.17, 47,422.97 and 11,900.72

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Solution

The fourth proportional to 31,620.17, 47,422.97 and 11,900.72 is: 17,848.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,620.17 : 47,422.97 = 11,900.72 : x
  2. Step 2: Convert to fraction form
    31,620.17/47,422.97 = 11,900.72/x
  3. Step 3: Cross multiply
    31,620.17x = 47,422.97 × 11,900.72
  4. Step 4: Simplify right side
    31,620.17x = 564,367,591.22
  5. Step 5: Solve for x
    x = 564,367,591.22/31,620.17
  6. Step 6: Final answer
    x = 17,848.34

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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.