Home / 31,091.32-42,903.97-17,481.45

Finding the Fourth Proportional to 31,091.32, 42,903.97 and 17,481.45

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Solution

The fourth proportional to 31,091.32, 42,903.97 and 17,481.45 is: 24,123.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,091.32 : 42,903.97 = 17,481.45 : x
  2. Step 2: Convert to fraction form
    31,091.32/42,903.97 = 17,481.45/x
  3. Step 3: Cross multiply
    31,091.32x = 42,903.97 × 17,481.45
  4. Step 4: Simplify right side
    31,091.32x = 750,023,562.65
  5. Step 5: Solve for x
    x = 750,023,562.65/31,091.32
  6. Step 6: Final answer
    x = 24,123.25

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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.