Home / 20,306.60-30,458.82-6,454.52

Finding the Fourth Proportional to 20,306.60, 30,458.82 and 6,454.52

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Solution

The fourth proportional to 20,306.60, 30,458.82 and 6,454.52 is: 9,681.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,306.60 : 30,458.82 = 6,454.52 : x
  2. Step 2: Convert to fraction form
    20,306.60/30,458.82 = 6,454.52/x
  3. Step 3: Cross multiply
    20,306.60x = 30,458.82 × 6,454.52
  4. Step 4: Simplify right side
    20,306.60x = 196,597,062.87
  5. Step 5: Solve for x
    x = 196,597,062.87/20,306.60
  6. Step 6: Final answer
    x = 9,681.44

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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.