Home / 20,046.80-30,061.32-10,685.08

Finding the Fourth Proportional to 20,046.80, 30,061.32 and 10,685.08

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Solution

The fourth proportional to 20,046.80, 30,061.32 and 10,685.08 is: 16,022.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,046.80 : 30,061.32 = 10,685.08 : x
  2. Step 2: Convert to fraction form
    20,046.80/30,061.32 = 10,685.08/x
  3. Step 3: Cross multiply
    20,046.80x = 30,061.32 × 10,685.08
  4. Step 4: Simplify right side
    20,046.80x = 321,207,609.11
  5. Step 5: Solve for x
    x = 321,207,609.11/20,046.80
  6. Step 6: Final answer
    x = 16,022.89

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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.