Home / 38,390.96-57,550.04-13,414.78

Finding the Fourth Proportional to 38,390.96, 57,550.04 and 13,414.78

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Solution

The fourth proportional to 38,390.96, 57,550.04 and 13,414.78 is: 20,109.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,390.96 : 57,550.04 = 13,414.78 : x
  2. Step 2: Convert to fraction form
    38,390.96/57,550.04 = 13,414.78/x
  3. Step 3: Cross multiply
    38,390.96x = 57,550.04 × 13,414.78
  4. Step 4: Simplify right side
    38,390.96x = 772,020,837.84
  5. Step 5: Solve for x
    x = 772,020,837.84/38,390.96
  6. Step 6: Final answer
    x = 20,109.44

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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.