Home / 26,578.82-36,644.56-21,781.19

Finding the Fourth Proportional to 26,578.82, 36,644.56 and 21,781.19

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Solution

The fourth proportional to 26,578.82, 36,644.56 and 21,781.19 is: 30,030.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,578.82 : 36,644.56 = 21,781.19 : x
  2. Step 2: Convert to fraction form
    26,578.82/36,644.56 = 21,781.19/x
  3. Step 3: Cross multiply
    26,578.82x = 36,644.56 × 21,781.19
  4. Step 4: Simplify right side
    26,578.82x = 798,162,160.98
  5. Step 5: Solve for x
    x = 798,162,160.98/26,578.82
  6. Step 6: Final answer
    x = 30,030.00

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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.