Home / 28,492.73-39,321.35-17,165.78

Finding the Fourth Proportional to 28,492.73, 39,321.35 and 17,165.78

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Solution

The fourth proportional to 28,492.73, 39,321.35 and 17,165.78 is: 23,689.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,492.73 : 39,321.35 = 17,165.78 : x
  2. Step 2: Convert to fraction form
    28,492.73/39,321.35 = 17,165.78/x
  3. Step 3: Cross multiply
    28,492.73x = 39,321.35 × 17,165.78
  4. Step 4: Simplify right side
    28,492.73x = 674,981,643.40
  5. Step 5: Solve for x
    x = 674,981,643.40/28,492.73
  6. Step 6: Final answer
    x = 23,689.61

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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.