Home / 22,161.72-30,569.58-15,091.32

Finding the Fourth Proportional to 22,161.72, 30,569.58 and 15,091.32

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Solution

The fourth proportional to 22,161.72, 30,569.58 and 15,091.32 is: 20,816.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,161.72 : 30,569.58 = 15,091.32 : x
  2. Step 2: Convert to fraction form
    22,161.72/30,569.58 = 15,091.32/x
  3. Step 3: Cross multiply
    22,161.72x = 30,569.58 × 15,091.32
  4. Step 4: Simplify right side
    22,161.72x = 461,335,314.05
  5. Step 5: Solve for x
    x = 461,335,314.05/22,161.72
  6. Step 6: Final answer
    x = 20,816.76

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Double scale
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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.