Home / 39,279.96-58,929.17-12,984.71

Finding the Fourth Proportional to 39,279.96, 58,929.17 and 12,984.71

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Solution

The fourth proportional to 39,279.96, 58,929.17 and 12,984.71 is: 19,480.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,279.96 : 58,929.17 = 12,984.71 : x
  2. Step 2: Convert to fraction form
    39,279.96/58,929.17 = 12,984.71/x
  3. Step 3: Cross multiply
    39,279.96x = 58,929.17 × 12,984.71
  4. Step 4: Simplify right side
    39,279.96x = 765,177,823.42
  5. Step 5: Solve for x
    x = 765,177,823.42/39,279.96
  6. Step 6: Final answer
    x = 19,480.11

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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.