Home / 20,749.24-28,631.46-11,796.76

Finding the Fourth Proportional to 20,749.24, 28,631.46 and 11,796.76

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Solution

The fourth proportional to 20,749.24, 28,631.46 and 11,796.76 is: 16,278.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,749.24 : 28,631.46 = 11,796.76 : x
  2. Step 2: Convert to fraction form
    20,749.24/28,631.46 = 11,796.76/x
  3. Step 3: Cross multiply
    20,749.24x = 28,631.46 × 11,796.76
  4. Step 4: Simplify right side
    20,749.24x = 337,758,462.07
  5. Step 5: Solve for x
    x = 337,758,462.07/20,749.24
  6. Step 6: Final answer
    x = 16,278.11

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Double scale
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Similar ratio
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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.