Home / 22,210.38-30,645.27-13,260.78

Finding the Fourth Proportional to 22,210.38, 30,645.27 and 13,260.78

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Solution

The fourth proportional to 22,210.38, 30,645.27 and 13,260.78 is: 18,296.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,210.38 : 30,645.27 = 13,260.78 : x
  2. Step 2: Convert to fraction form
    22,210.38/30,645.27 = 13,260.78/x
  3. Step 3: Cross multiply
    22,210.38x = 30,645.27 × 13,260.78
  4. Step 4: Simplify right side
    22,210.38x = 406,380,183.51
  5. Step 5: Solve for x
    x = 406,380,183.51/22,210.38
  6. Step 6: Final answer
    x = 18,296.86

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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.