Home / 27,787.10-38,306.67-17,170.70

Finding the Fourth Proportional to 27,787.10, 38,306.67 and 17,170.70

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Solution

The fourth proportional to 27,787.10, 38,306.67 and 17,170.70 is: 23,671.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,787.10 : 38,306.67 = 17,170.70 : x
  2. Step 2: Convert to fraction form
    27,787.10/38,306.67 = 17,170.70/x
  3. Step 3: Cross multiply
    27,787.10x = 38,306.67 × 17,170.70
  4. Step 4: Simplify right side
    27,787.10x = 657,752,338.57
  5. Step 5: Solve for x
    x = 657,752,338.57/27,787.10
  6. Step 6: Final answer
    x = 23,671.14

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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.