Home / 38,670.18-57,995.82-12,369.48

Finding the Fourth Proportional to 38,670.18, 57,995.82 and 12,369.48

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Solution

The fourth proportional to 38,670.18, 57,995.82 and 12,369.48 is: 18,551.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,670.18 : 57,995.82 = 12,369.48 : x
  2. Step 2: Convert to fraction form
    38,670.18/57,995.82 = 12,369.48/x
  3. Step 3: Cross multiply
    38,670.18x = 57,995.82 × 12,369.48
  4. Step 4: Simplify right side
    38,670.18x = 717,378,135.57
  5. Step 5: Solve for x
    x = 717,378,135.57/38,670.18
  6. Step 6: Final answer
    x = 18,551.20

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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.