Home / 38,305.60-57,458.40-12,010.30

Finding the Fourth Proportional to 38,305.60, 57,458.40 and 12,010.30

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Solution

The fourth proportional to 38,305.60, 57,458.40 and 12,010.30 is: 18,015.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,305.60 : 57,458.40 = 12,010.30 : x
  2. Step 2: Convert to fraction form
    38,305.60/57,458.40 = 12,010.30/x
  3. Step 3: Cross multiply
    38,305.60x = 57,458.40 × 12,010.30
  4. Step 4: Simplify right side
    38,305.60x = 690,092,621.52
  5. Step 5: Solve for x
    x = 690,092,621.52/38,305.60
  6. Step 6: Final answer
    x = 18,015.45

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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.