Home / 28,067.56-38,732.90-15,492.04

Finding the Fourth Proportional to 28,067.56, 38,732.90 and 15,492.04

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Solution

The fourth proportional to 28,067.56, 38,732.90 and 15,492.04 is: 21,378.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,067.56 : 38,732.90 = 15,492.04 : x
  2. Step 2: Convert to fraction form
    28,067.56/38,732.90 = 15,492.04/x
  3. Step 3: Cross multiply
    28,067.56x = 38,732.90 × 15,492.04
  4. Step 4: Simplify right side
    28,067.56x = 600,051,636.12
  5. Step 5: Solve for x
    x = 600,051,636.12/28,067.56
  6. Step 6: Final answer
    x = 21,378.83

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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.