Home / 28,132.60-38,825.34-16,199.80

Finding the Fourth Proportional to 28,132.60, 38,825.34 and 16,199.80

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Solution

The fourth proportional to 28,132.60, 38,825.34 and 16,199.80 is: 22,357.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,132.60 : 38,825.34 = 16,199.80 : x
  2. Step 2: Convert to fraction form
    28,132.60/38,825.34 = 16,199.80/x
  3. Step 3: Cross multiply
    28,132.60x = 38,825.34 × 16,199.80
  4. Step 4: Simplify right side
    28,132.60x = 628,962,742.93
  5. Step 5: Solve for x
    x = 628,962,742.93/28,132.60
  6. Step 6: Final answer
    x = 22,357.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.