Home / 28,067.30-38,732.85-15,492.02

Finding the Fourth Proportional to 28,067.30, 38,732.85 and 15,492.02

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Solution

The fourth proportional to 28,067.30, 38,732.85 and 15,492.02 is: 21,378.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,067.30 : 38,732.85 = 15,492.02 : x
  2. Step 2: Convert to fraction form
    28,067.30/38,732.85 = 15,492.02/x
  3. Step 3: Cross multiply
    28,067.30x = 38,732.85 × 15,492.02
  4. Step 4: Simplify right side
    28,067.30x = 600,050,086.86
  5. Step 5: Solve for x
    x = 600,050,086.86/28,067.30
  6. Step 6: Final answer
    x = 21,378.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.