Home / 22,458.74-30,991.73-12,387.20

Finding the Fourth Proportional to 22,458.74, 30,991.73 and 12,387.20

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Solution

The fourth proportional to 22,458.74, 30,991.73 and 12,387.20 is: 17,093.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,458.74 : 30,991.73 = 12,387.20 : x
  2. Step 2: Convert to fraction form
    22,458.74/30,991.73 = 12,387.20/x
  3. Step 3: Cross multiply
    22,458.74x = 30,991.73 × 12,387.20
  4. Step 4: Simplify right side
    22,458.74x = 383,900,540.96
  5. Step 5: Solve for x
    x = 383,900,540.96/22,458.74
  6. Step 6: Final answer
    x = 17,093.60

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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.