Home / 27,951.75-38,553.89-18,388.62

Finding the Fourth Proportional to 27,951.75, 38,553.89 and 18,388.62

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Solution

The fourth proportional to 27,951.75, 38,553.89 and 18,388.62 is: 25,363.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,951.75 : 38,553.89 = 18,388.62 : x
  2. Step 2: Convert to fraction form
    27,951.75/38,553.89 = 18,388.62/x
  3. Step 3: Cross multiply
    27,951.75x = 38,553.89 × 18,388.62
  4. Step 4: Simplify right side
    27,951.75x = 708,952,740.79
  5. Step 5: Solve for x
    x = 708,952,740.79/27,951.75
  6. Step 6: Final answer
    x = 25,363.45

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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.