Home / 22,062.77-30,446.55-11,991.21

Finding the Fourth Proportional to 22,062.77, 30,446.55 and 11,991.21

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Solution

The fourth proportional to 22,062.77, 30,446.55 and 11,991.21 is: 16,547.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,062.77 : 30,446.55 = 11,991.21 : x
  2. Step 2: Convert to fraction form
    22,062.77/30,446.55 = 11,991.21/x
  3. Step 3: Cross multiply
    22,062.77x = 30,446.55 × 11,991.21
  4. Step 4: Simplify right side
    22,062.77x = 365,090,974.83
  5. Step 5: Solve for x
    x = 365,090,974.83/22,062.77
  6. Step 6: Final answer
    x = 16,547.83

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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.