Home / 38,708.53-58,070.96-12,431.72

Finding the Fourth Proportional to 38,708.53, 58,070.96 and 12,431.72

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Solution

The fourth proportional to 38,708.53, 58,070.96 and 12,431.72 is: 18,650.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,708.53 : 58,070.96 = 12,431.72 : x
  2. Step 2: Convert to fraction form
    38,708.53/58,070.96 = 12,431.72/x
  3. Step 3: Cross multiply
    38,708.53x = 58,070.96 × 12,431.72
  4. Step 4: Simplify right side
    38,708.53x = 721,921,914.85
  5. Step 5: Solve for x
    x = 721,921,914.85/38,708.53
  6. Step 6: Final answer
    x = 18,650.20

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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.