Home / 20,291.84-30,437.78-5,500.76

Finding the Fourth Proportional to 20,291.84, 30,437.78 and 5,500.76

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Solution

The fourth proportional to 20,291.84, 30,437.78 and 5,500.76 is: 8,251.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,291.84 : 30,437.78 = 5,500.76 : x
  2. Step 2: Convert to fraction form
    20,291.84/30,437.78 = 5,500.76/x
  3. Step 3: Cross multiply
    20,291.84x = 30,437.78 × 5,500.76
  4. Step 4: Simplify right side
    20,291.84x = 167,430,914.23
  5. Step 5: Solve for x
    x = 167,430,914.23/20,291.84
  6. Step 6: Final answer
    x = 8,251.14

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.