Home / 27,660.20-38,174.51-16,902.86

Finding the Fourth Proportional to 27,660.20, 38,174.51 and 16,902.86

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Solution

The fourth proportional to 27,660.20, 38,174.51 and 16,902.86 is: 23,328.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,660.20 : 38,174.51 = 16,902.86 : x
  2. Step 2: Convert to fraction form
    27,660.20/38,174.51 = 16,902.86/x
  3. Step 3: Cross multiply
    27,660.20x = 38,174.51 × 16,902.86
  4. Step 4: Simplify right side
    27,660.20x = 645,258,398.10
  5. Step 5: Solve for x
    x = 645,258,398.10/27,660.20
  6. Step 6: Final answer
    x = 23,328.05

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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.