Home / 22,305.16-30,781.38-13,926.52

Finding the Fourth Proportional to 22,305.16, 30,781.38 and 13,926.52

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Solution

The fourth proportional to 22,305.16, 30,781.38 and 13,926.52 is: 19,218.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,305.16 : 30,781.38 = 13,926.52 : x
  2. Step 2: Convert to fraction form
    22,305.16/30,781.38 = 13,926.52/x
  3. Step 3: Cross multiply
    22,305.16x = 30,781.38 × 13,926.52
  4. Step 4: Simplify right side
    22,305.16x = 428,677,504.20
  5. Step 5: Solve for x
    x = 428,677,504.20/22,305.16
  6. Step 6: Final answer
    x = 19,218.76

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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.