Home / 27,994.79-38,640.75-18,441.65

Finding the Fourth Proportional to 27,994.79, 38,640.75 and 18,441.65

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Solution

The fourth proportional to 27,994.79, 38,640.75 and 18,441.65 is: 25,454.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,994.79 : 38,640.75 = 18,441.65 : x
  2. Step 2: Convert to fraction form
    27,994.79/38,640.75 = 18,441.65/x
  3. Step 3: Cross multiply
    27,994.79x = 38,640.75 × 18,441.65
  4. Step 4: Simplify right side
    27,994.79x = 712,598,994.03
  5. Step 5: Solve for x
    x = 712,598,994.03/27,994.79
  6. Step 6: Final answer
    x = 25,454.71

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Double scale
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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.