Home / 31,261.60-43,141.98-17,115.76

Finding the Fourth Proportional to 31,261.60, 43,141.98 and 17,115.76

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Solution

The fourth proportional to 31,261.60, 43,141.98 and 17,115.76 is: 23,620.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,261.60 : 43,141.98 = 17,115.76 : x
  2. Step 2: Convert to fraction form
    31,261.60/43,141.98 = 17,115.76/x
  3. Step 3: Cross multiply
    31,261.60x = 43,141.98 × 17,115.76
  4. Step 4: Simplify right side
    31,261.60x = 738,407,775.60
  5. Step 5: Solve for x
    x = 738,407,775.60/31,261.60
  6. Step 6: Final answer
    x = 23,620.28

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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.