Home / 31,478.88-43,441.02-17,331.73

Finding the Fourth Proportional to 31,478.88, 43,441.02 and 17,331.73

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Solution

The fourth proportional to 31,478.88, 43,441.02 and 17,331.73 is: 23,917.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,478.88 : 43,441.02 = 17,331.73 : x
  2. Step 2: Convert to fraction form
    31,478.88/43,441.02 = 17,331.73/x
  3. Step 3: Cross multiply
    31,478.88x = 43,441.02 × 17,331.73
  4. Step 4: Simplify right side
    31,478.88x = 752,908,029.56
  5. Step 5: Solve for x
    x = 752,908,029.56/31,478.88
  6. Step 6: Final answer
    x = 23,917.88

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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.