Home / 27,769.31-38,321.65-15,194.06

Finding the Fourth Proportional to 27,769.31, 38,321.65 and 15,194.06

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Solution

The fourth proportional to 27,769.31, 38,321.65 and 15,194.06 is: 20,967.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,769.31 : 38,321.65 = 15,194.06 : x
  2. Step 2: Convert to fraction form
    27,769.31/38,321.65 = 15,194.06/x
  3. Step 3: Cross multiply
    27,769.31x = 38,321.65 × 15,194.06
  4. Step 4: Simplify right side
    27,769.31x = 582,261,564.20
  5. Step 5: Solve for x
    x = 582,261,564.20/27,769.31
  6. Step 6: Final answer
    x = 20,967.81

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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.