Home / 38,479.88-57,728.70-12,184.62

Finding the Fourth Proportional to 38,479.88, 57,728.70 and 12,184.62

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Solution

The fourth proportional to 38,479.88, 57,728.70 and 12,184.62 is: 18,279.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,479.88 : 57,728.70 = 12,184.62 : x
  2. Step 2: Convert to fraction form
    38,479.88/57,728.70 = 12,184.62/x
  3. Step 3: Cross multiply
    38,479.88x = 57,728.70 × 12,184.62
  4. Step 4: Simplify right side
    38,479.88x = 703,402,272.59
  5. Step 5: Solve for x
    x = 703,402,272.59/38,479.88
  6. Step 6: Final answer
    x = 18,279.74

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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.