Home / 38,165.72-57,243.11-18,438.98

Finding the Fourth Proportional to 38,165.72, 57,243.11 and 18,438.98

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Solution

The fourth proportional to 38,165.72, 57,243.11 and 18,438.98 is: 27,655.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,165.72 : 57,243.11 = 18,438.98 : x
  2. Step 2: Convert to fraction form
    38,165.72/57,243.11 = 18,438.98/x
  3. Step 3: Cross multiply
    38,165.72x = 57,243.11 × 18,438.98
  4. Step 4: Simplify right side
    38,165.72x = 1,055,504,182.02
  5. Step 5: Solve for x
    x = 1,055,504,182.02/38,165.72
  6. Step 6: Final answer
    x = 27,655.82

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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.