Home / 22,458.96-30,992.60-12,387.80

Finding the Fourth Proportional to 22,458.96, 30,992.60 and 12,387.80

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Solution

The fourth proportional to 22,458.96, 30,992.60 and 12,387.80 is: 17,094.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,458.96 : 30,992.60 = 12,387.80 : x
  2. Step 2: Convert to fraction form
    22,458.96/30,992.60 = 12,387.80/x
  3. Step 3: Cross multiply
    22,458.96x = 30,992.60 × 12,387.80
  4. Step 4: Simplify right side
    22,458.96x = 383,930,130.28
  5. Step 5: Solve for x
    x = 383,930,130.28/22,458.96
  6. Step 6: Final answer
    x = 17,094.74

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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.