Home / 20,325.74-30,488.60-13,398.62

Finding the Fourth Proportional to 20,325.74, 30,488.60 and 13,398.62

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Solution

The fourth proportional to 20,325.74, 30,488.60 and 13,398.62 is: 20,097.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,325.74 : 30,488.60 = 13,398.62 : x
  2. Step 2: Convert to fraction form
    20,325.74/30,488.60 = 13,398.62/x
  3. Step 3: Cross multiply
    20,325.74x = 30,488.60 × 13,398.62
  4. Step 4: Simplify right side
    20,325.74x = 408,505,046.79
  5. Step 5: Solve for x
    x = 408,505,046.79/20,325.74
  6. Step 6: Final answer
    x = 20,097.92

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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.