Home / 22,380.33-30,884.87-12,309.45

Finding the Fourth Proportional to 22,380.33, 30,884.87 and 12,309.45

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Solution

The fourth proportional to 22,380.33, 30,884.87 and 12,309.45 is: 16,987.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,380.33 : 30,884.87 = 12,309.45 : x
  2. Step 2: Convert to fraction form
    22,380.33/30,884.87 = 12,309.45/x
  3. Step 3: Cross multiply
    22,380.33x = 30,884.87 × 12,309.45
  4. Step 4: Simplify right side
    22,380.33x = 380,175,701.47
  5. Step 5: Solve for x
    x = 380,175,701.47/22,380.33
  6. Step 6: Final answer
    x = 16,987.05

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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.