Home / 31,251.89-43,128.64-17,104.74

Finding the Fourth Proportional to 31,251.89, 43,128.64 and 17,104.74

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Solution

The fourth proportional to 31,251.89, 43,128.64 and 17,104.74 is: 23,605.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,251.89 : 43,128.64 = 17,104.74 : x
  2. Step 2: Convert to fraction form
    31,251.89/43,128.64 = 17,104.74/x
  3. Step 3: Cross multiply
    31,251.89x = 43,128.64 × 17,104.74
  4. Step 4: Simplify right side
    31,251.89x = 737,704,173.75
  5. Step 5: Solve for x
    x = 737,704,173.75/31,251.89
  6. Step 6: Final answer
    x = 23,605.11

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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.