Home / 38,889.39-58,321.10-15,190.79

Finding the Fourth Proportional to 38,889.39, 58,321.10 and 15,190.79

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Solution

The fourth proportional to 38,889.39, 58,321.10 and 15,190.79 is: 22,781.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,889.39 : 58,321.10 = 15,190.79 : x
  2. Step 2: Convert to fraction form
    38,889.39/58,321.10 = 15,190.79/x
  3. Step 3: Cross multiply
    38,889.39x = 58,321.10 × 15,190.79
  4. Step 4: Simplify right side
    38,889.39x = 885,943,582.67
  5. Step 5: Solve for x
    x = 885,943,582.67/38,889.39
  6. Step 6: Final answer
    x = 22,781.11

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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.