Home / 27,755.98-38,303.40-15,180.76

Finding the Fourth Proportional to 27,755.98, 38,303.40 and 15,180.76

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Solution

The fourth proportional to 27,755.98, 38,303.40 and 15,180.76 is: 20,949.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,755.98 : 38,303.40 = 15,180.76 : x
  2. Step 2: Convert to fraction form
    27,755.98/38,303.40 = 15,180.76/x
  3. Step 3: Cross multiply
    27,755.98x = 38,303.40 × 15,180.76
  4. Step 4: Simplify right side
    27,755.98x = 581,474,722.58
  5. Step 5: Solve for x
    x = 581,474,722.58/27,755.98
  6. Step 6: Final answer
    x = 20,949.53

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Double scale
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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.