Home / 43,186.80-64,780.20-16,873.10

Finding the Fourth Proportional to 43,186.80, 64,780.20 and 16,873.10

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Solution

The fourth proportional to 43,186.80, 64,780.20 and 16,873.10 is: 25,309.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,186.80 : 64,780.20 = 16,873.10 : x
  2. Step 2: Convert to fraction form
    43,186.80/64,780.20 = 16,873.10/x
  3. Step 3: Cross multiply
    43,186.80x = 64,780.20 × 16,873.10
  4. Step 4: Simplify right side
    43,186.80x = 1,093,042,468.72
  5. Step 5: Solve for x
    x = 1,093,042,468.72/43,186.80
  6. Step 6: Final answer
    x = 25,309.64

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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.