Home / 27,728.91-38,278.47-17,671.14

Finding the Fourth Proportional to 27,728.91, 38,278.47 and 17,671.14

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Solution

The fourth proportional to 27,728.91, 38,278.47 and 17,671.14 is: 24,394.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,728.91 : 38,278.47 = 17,671.14 : x
  2. Step 2: Convert to fraction form
    27,728.91/38,278.47 = 17,671.14/x
  3. Step 3: Cross multiply
    27,728.91x = 38,278.47 × 17,671.14
  4. Step 4: Simplify right side
    27,728.91x = 676,424,202.36
  5. Step 5: Solve for x
    x = 676,424,202.36/27,728.91
  6. Step 6: Final answer
    x = 24,394.19

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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.