Home / 21,739.20-32,560.20-16,792.80

Finding the Fourth Proportional to 21,739.20, 32,560.20 and 16,792.80

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Solution

The fourth proportional to 21,739.20, 32,560.20 and 16,792.80 is: 25,151.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,739.20 : 32,560.20 = 16,792.80 : x
  2. Step 2: Convert to fraction form
    21,739.20/32,560.20 = 16,792.80/x
  3. Step 3: Cross multiply
    21,739.20x = 32,560.20 × 16,792.80
  4. Step 4: Simplify right side
    21,739.20x = 546,776,926.56
  5. Step 5: Solve for x
    x = 546,776,926.56/21,739.20
  6. Step 6: Final answer
    x = 25,151.66

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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.