Home / 38,419.65-57,629.47-12,126.44

Finding the Fourth Proportional to 38,419.65, 57,629.47 and 12,126.44

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Solution

The fourth proportional to 38,419.65, 57,629.47 and 12,126.44 is: 18,189.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,419.65 : 57,629.47 = 12,126.44 : x
  2. Step 2: Convert to fraction form
    38,419.65/57,629.47 = 12,126.44/x
  3. Step 3: Cross multiply
    38,419.65x = 57,629.47 × 12,126.44
  4. Step 4: Simplify right side
    38,419.65x = 698,840,310.19
  5. Step 5: Solve for x
    x = 698,840,310.19/38,419.65
  6. Step 6: Final answer
    x = 18,189.66

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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.