Home / 20,525.60-30,769.20-16,080.80

Finding the Fourth Proportional to 20,525.60, 30,769.20 and 16,080.80

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Solution

The fourth proportional to 20,525.60, 30,769.20 and 16,080.80 is: 24,106.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,525.60 : 30,769.20 = 16,080.80 : x
  2. Step 2: Convert to fraction form
    20,525.60/30,769.20 = 16,080.80/x
  3. Step 3: Cross multiply
    20,525.60x = 30,769.20 × 16,080.80
  4. Step 4: Simplify right side
    20,525.60x = 494,793,351.36
  5. Step 5: Solve for x
    x = 494,793,351.36/20,525.60
  6. Step 6: Final answer
    x = 24,106.16

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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.