Home / 21,338.20-32,007.30-7,487.20

Finding the Fourth Proportional to 21,338.20, 32,007.30 and 7,487.20

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Solution

The fourth proportional to 21,338.20, 32,007.30 and 7,487.20 is: 11,230.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,338.20 : 32,007.30 = 7,487.20 : x
  2. Step 2: Convert to fraction form
    21,338.20/32,007.30 = 7,487.20/x
  3. Step 3: Cross multiply
    21,338.20x = 32,007.30 × 7,487.20
  4. Step 4: Simplify right side
    21,338.20x = 239,645,056.56
  5. Step 5: Solve for x
    x = 239,645,056.56/21,338.20
  6. Step 6: Final answer
    x = 11,230.80

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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.