Home / 20,291.79-30,437.69-5,500.71

Finding the Fourth Proportional to 20,291.79, 30,437.69 and 5,500.71

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Solution

The fourth proportional to 20,291.79, 30,437.69 and 5,500.71 is: 8,251.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,291.79 : 30,437.69 = 5,500.71 : x
  2. Step 2: Convert to fraction form
    20,291.79/30,437.69 = 5,500.71/x
  3. Step 3: Cross multiply
    20,291.79x = 30,437.69 × 5,500.71
  4. Step 4: Simplify right side
    20,291.79x = 167,428,878.26
  5. Step 5: Solve for x
    x = 167,428,878.26/20,291.79
  6. Step 6: Final answer
    x = 8,251.07

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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.