Home / 27,937.75-38,553.76-20,799.56

Finding the Fourth Proportional to 27,937.75, 38,553.76 and 20,799.56

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Solution

The fourth proportional to 27,937.75, 38,553.76 and 20,799.56 is: 28,703.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,937.75 : 38,553.76 = 20,799.56 : x
  2. Step 2: Convert to fraction form
    27,937.75/38,553.76 = 20,799.56/x
  3. Step 3: Cross multiply
    27,937.75x = 38,553.76 × 20,799.56
  4. Step 4: Simplify right side
    27,937.75x = 801,900,947.58
  5. Step 5: Solve for x
    x = 801,900,947.58/27,937.75
  6. Step 6: Final answer
    x = 28,703.13

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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.