Home / 28,252.96-38,990.68-17,078.56

Finding the Fourth Proportional to 28,252.96, 38,990.68 and 17,078.56

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Solution

The fourth proportional to 28,252.96, 38,990.68 and 17,078.56 is: 23,569.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,252.96 : 38,990.68 = 17,078.56 : x
  2. Step 2: Convert to fraction form
    28,252.96/38,990.68 = 17,078.56/x
  3. Step 3: Cross multiply
    28,252.96x = 38,990.68 × 17,078.56
  4. Step 4: Simplify right side
    28,252.96x = 665,904,667.82
  5. Step 5: Solve for x
    x = 665,904,667.82/28,252.96
  6. Step 6: Final answer
    x = 23,569.38

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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.