Home / 22,138.20-33,215.40-10,442.61

Finding the Fourth Proportional to 22,138.20, 33,215.40 and 10,442.61

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Solution

The fourth proportional to 22,138.20, 33,215.40 and 10,442.61 is: 15,667.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,138.20 : 33,215.40 = 10,442.61 : x
  2. Step 2: Convert to fraction form
    22,138.20/33,215.40 = 10,442.61/x
  3. Step 3: Cross multiply
    22,138.20x = 33,215.40 × 10,442.61
  4. Step 4: Simplify right side
    22,138.20x = 346,855,468.19
  5. Step 5: Solve for x
    x = 346,855,468.19/22,138.20
  6. Step 6: Final answer
    x = 15,667.74

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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.