Home / 38,990.39-58,439.21-17,912.57

Finding the Fourth Proportional to 38,990.39, 58,439.21 and 17,912.57

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Solution

The fourth proportional to 38,990.39, 58,439.21 and 17,912.57 is: 26,847.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,990.39 : 58,439.21 = 17,912.57 : x
  2. Step 2: Convert to fraction form
    38,990.39/58,439.21 = 17,912.57/x
  3. Step 3: Cross multiply
    38,990.39x = 58,439.21 × 17,912.57
  4. Step 4: Simplify right side
    38,990.39x = 1,046,796,058.11
  5. Step 5: Solve for x
    x = 1,046,796,058.11/38,990.39
  6. Step 6: Final answer
    x = 26,847.54

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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.