Home / 38,670.20-57,995.80-12,369.48

Finding the Fourth Proportional to 38,670.20, 57,995.80 and 12,369.48

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Solution

The fourth proportional to 38,670.20, 57,995.80 and 12,369.48 is: 18,551.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,670.20 : 57,995.80 = 12,369.48 : x
  2. Step 2: Convert to fraction form
    38,670.20/57,995.80 = 12,369.48/x
  3. Step 3: Cross multiply
    38,670.20x = 57,995.80 × 12,369.48
  4. Step 4: Simplify right side
    38,670.20x = 717,377,888.18
  5. Step 5: Solve for x
    x = 717,377,888.18/38,670.20
  6. Step 6: Final answer
    x = 18,551.18

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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.