Home / 21,739.20-32,608.80-8,586.24

Finding the Fourth Proportional to 21,739.20, 32,608.80 and 8,586.24

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Solution

The fourth proportional to 21,739.20, 32,608.80 and 8,586.24 is: 12,879.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,739.20 : 32,608.80 = 8,586.24 : x
  2. Step 2: Convert to fraction form
    21,739.20/32,608.80 = 8,586.24/x
  3. Step 3: Cross multiply
    21,739.20x = 32,608.80 × 8,586.24
  4. Step 4: Simplify right side
    21,739.20x = 279,986,982.91
  5. Step 5: Solve for x
    x = 279,986,982.91/21,739.20
  6. Step 6: Final answer
    x = 12,879.36

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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.