Home / 38,778.95-58,168.65-13,819.97

Finding the Fourth Proportional to 38,778.95, 58,168.65 and 13,819.97

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Solution

The fourth proportional to 38,778.95, 58,168.65 and 13,819.97 is: 20,730.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,778.95 : 58,168.65 = 13,819.97 : x
  2. Step 2: Convert to fraction form
    38,778.95/58,168.65 = 13,819.97/x
  3. Step 3: Cross multiply
    38,778.95x = 58,168.65 × 13,819.97
  4. Step 4: Simplify right side
    38,778.95x = 803,888,707.10
  5. Step 5: Solve for x
    x = 803,888,707.10/38,778.95
  6. Step 6: Final answer
    x = 20,730.03

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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.