Home / 22,002.78-30,363.44-12,442.52

Finding the Fourth Proportional to 22,002.78, 30,363.44 and 12,442.52

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Solution

The fourth proportional to 22,002.78, 30,363.44 and 12,442.52 is: 17,170.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,002.78 : 30,363.44 = 12,442.52 : x
  2. Step 2: Convert to fraction form
    22,002.78/30,363.44 = 12,442.52/x
  3. Step 3: Cross multiply
    22,002.78x = 30,363.44 × 12,442.52
  4. Step 4: Simplify right side
    22,002.78x = 377,797,709.47
  5. Step 5: Solve for x
    x = 377,797,709.47/22,002.78
  6. Step 6: Final answer
    x = 17,170.45

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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.