Home / 27,759.78-38,314.08-19,279.62

Finding the Fourth Proportional to 27,759.78, 38,314.08 and 19,279.62

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Solution

The fourth proportional to 27,759.78, 38,314.08 and 19,279.62 is: 26,609.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,759.78 : 38,314.08 = 19,279.62 : x
  2. Step 2: Convert to fraction form
    27,759.78/38,314.08 = 19,279.62/x
  3. Step 3: Cross multiply
    27,759.78x = 38,314.08 × 19,279.62
  4. Step 4: Simplify right side
    27,759.78x = 738,680,903.05
  5. Step 5: Solve for x
    x = 738,680,903.05/27,759.78
  6. Step 6: Final answer
    x = 26,609.75

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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.