Home / 20,265.60-30,396.96-5,475.36

Finding the Fourth Proportional to 20,265.60, 30,396.96 and 5,475.36

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Solution

The fourth proportional to 20,265.60, 30,396.96 and 5,475.36 is: 8,212.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,265.60 : 30,396.96 = 5,475.36 : x
  2. Step 2: Convert to fraction form
    20,265.60/30,396.96 = 5,475.36/x
  3. Step 3: Cross multiply
    20,265.60x = 30,396.96 × 5,475.36
  4. Step 4: Simplify right side
    20,265.60x = 166,434,298.91
  5. Step 5: Solve for x
    x = 166,434,298.91/20,265.60
  6. Step 6: Final answer
    x = 8,212.65

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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.