Home / 38,408.18-57,618.35-13,447.62

Finding the Fourth Proportional to 38,408.18, 57,618.35 and 13,447.62

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Solution

The fourth proportional to 38,408.18, 57,618.35 and 13,447.62 is: 20,173.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,408.18 : 57,618.35 = 13,447.62 : x
  2. Step 2: Convert to fraction form
    38,408.18/57,618.35 = 13,447.62/x
  3. Step 3: Cross multiply
    38,408.18x = 57,618.35 × 13,447.62
  4. Step 4: Simplify right side
    38,408.18x = 774,829,608.59
  5. Step 5: Solve for x
    x = 774,829,608.59/38,408.18
  6. Step 6: Final answer
    x = 20,173.56

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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.