Home / 38,305.66-57,458.49-12,012.45

Finding the Fourth Proportional to 38,305.66, 57,458.49 and 12,012.45

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Solution

The fourth proportional to 38,305.66, 57,458.49 and 12,012.45 is: 18,018.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,305.66 : 57,458.49 = 12,012.45 : x
  2. Step 2: Convert to fraction form
    38,305.66/57,458.49 = 12,012.45/x
  3. Step 3: Cross multiply
    38,305.66x = 57,458.49 × 12,012.45
  4. Step 4: Simplify right side
    38,305.66x = 690,217,193.15
  5. Step 5: Solve for x
    x = 690,217,193.15/38,305.66
  6. Step 6: Final answer
    x = 18,018.68

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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.