Home / 22,351.32-30,844.40-12,279.51

Finding the Fourth Proportional to 22,351.32, 30,844.40 and 12,279.51

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Solution

The fourth proportional to 22,351.32, 30,844.40 and 12,279.51 is: 16,945.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,351.32 : 30,844.40 = 12,279.51 : x
  2. Step 2: Convert to fraction form
    22,351.32/30,844.40 = 12,279.51/x
  3. Step 3: Cross multiply
    22,351.32x = 30,844.40 × 12,279.51
  4. Step 4: Simplify right side
    22,351.32x = 378,754,056.85
  5. Step 5: Solve for x
    x = 378,754,056.85/22,351.32
  6. Step 6: Final answer
    x = 16,945.49

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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.