Home / 21,490.80-32,236.20-6,699.60

Finding the Fourth Proportional to 21,490.80, 32,236.20 and 6,699.60

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Solution

The fourth proportional to 21,490.80, 32,236.20 and 6,699.60 is: 10,049.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,490.80 : 32,236.20 = 6,699.60 : x
  2. Step 2: Convert to fraction form
    21,490.80/32,236.20 = 6,699.60/x
  3. Step 3: Cross multiply
    21,490.80x = 32,236.20 × 6,699.60
  4. Step 4: Simplify right side
    21,490.80x = 215,969,645.52
  5. Step 5: Solve for x
    x = 215,969,645.52/21,490.80
  6. Step 6: Final answer
    x = 10,049.40

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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.