Home / 28,246.29-38,979.68-15,671.04

Finding the Fourth Proportional to 28,246.29, 38,979.68 and 15,671.04

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Solution

The fourth proportional to 28,246.29, 38,979.68 and 15,671.04 is: 21,625.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,246.29 : 38,979.68 = 15,671.04 : x
  2. Step 2: Convert to fraction form
    28,246.29/38,979.68 = 15,671.04/x
  3. Step 3: Cross multiply
    28,246.29x = 38,979.68 × 15,671.04
  4. Step 4: Simplify right side
    28,246.29x = 610,852,046.11
  5. Step 5: Solve for x
    x = 610,852,046.11/28,246.29
  6. Step 6: Final answer
    x = 21,625.92

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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.