Home / 27,881.19-38,474.73-15,134.09

Finding the Fourth Proportional to 27,881.19, 38,474.73 and 15,134.09

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Solution

The fourth proportional to 27,881.19, 38,474.73 and 15,134.09 is: 20,884.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,881.19 : 38,474.73 = 15,134.09 : x
  2. Step 2: Convert to fraction form
    27,881.19/38,474.73 = 15,134.09/x
  3. Step 3: Cross multiply
    27,881.19x = 38,474.73 × 15,134.09
  4. Step 4: Simplify right side
    27,881.19x = 582,279,834.17
  5. Step 5: Solve for x
    x = 582,279,834.17/27,881.19
  6. Step 6: Final answer
    x = 20,884.33

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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.