Home / 22,138.92-33,212.97-10,445.76

Finding the Fourth Proportional to 22,138.92, 33,212.97 and 10,445.76

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Solution

The fourth proportional to 22,138.92, 33,212.97 and 10,445.76 is: 15,670.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,138.92 : 33,212.97 = 10,445.76 : x
  2. Step 2: Convert to fraction form
    22,138.92/33,212.97 = 10,445.76/x
  3. Step 3: Cross multiply
    22,138.92x = 33,212.97 × 10,445.76
  4. Step 4: Simplify right side
    22,138.92x = 346,934,713.51
  5. Step 5: Solve for x
    x = 346,934,713.51/22,138.92
  6. Step 6: Final answer
    x = 15,670.81

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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.