Home / 20,325.60-30,488.40-13,349.70

Finding the Fourth Proportional to 20,325.60, 30,488.40 and 13,349.70

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Solution

The fourth proportional to 20,325.60, 30,488.40 and 13,349.70 is: 20,024.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,325.60 : 30,488.40 = 13,349.70 : x
  2. Step 2: Convert to fraction form
    20,325.60/30,488.40 = 13,349.70/x
  3. Step 3: Cross multiply
    20,325.60x = 30,488.40 × 13,349.70
  4. Step 4: Simplify right side
    20,325.60x = 407,010,993.48
  5. Step 5: Solve for x
    x = 407,010,993.48/20,325.60
  6. Step 6: Final answer
    x = 20,024.55

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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.