Home / 27,809.22-38,382.06-21,747.45

Finding the Fourth Proportional to 27,809.22, 38,382.06 and 21,747.45

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Solution

The fourth proportional to 27,809.22, 38,382.06 and 21,747.45 is: 30,015.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,809.22 : 38,382.06 = 21,747.45 : x
  2. Step 2: Convert to fraction form
    27,809.22/38,382.06 = 21,747.45/x
  3. Step 3: Cross multiply
    27,809.22x = 38,382.06 × 21,747.45
  4. Step 4: Simplify right side
    27,809.22x = 834,711,930.75
  5. Step 5: Solve for x
    x = 834,711,930.75/27,809.22
  6. Step 6: Final answer
    x = 30,015.65

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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.