Home / 20,320.01-27,979.31-17,787.95

Finding the Fourth Proportional to 20,320.01, 27,979.31 and 17,787.95

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Solution

The fourth proportional to 20,320.01, 27,979.31 and 17,787.95 is: 24,492.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,320.01 : 27,979.31 = 17,787.95 : x
  2. Step 2: Convert to fraction form
    20,320.01/27,979.31 = 17,787.95/x
  3. Step 3: Cross multiply
    20,320.01x = 27,979.31 × 17,787.95
  4. Step 4: Simplify right side
    20,320.01x = 497,694,476.75
  5. Step 5: Solve for x
    x = 497,694,476.75/20,320.01
  6. Step 6: Final answer
    x = 24,492.83

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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.