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Finding the Fourth Proportional to 26,665.80, 36,787.41 and 18,713.22

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Solution

The fourth proportional to 26,665.80, 36,787.41 and 18,713.22 is: 25,816.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,665.80 : 36,787.41 = 18,713.22 : x
  2. Step 2: Convert to fraction form
    26,665.80/36,787.41 = 18,713.22/x
  3. Step 3: Cross multiply
    26,665.80x = 36,787.41 × 18,713.22
  4. Step 4: Simplify right side
    26,665.80x = 688,410,896.56
  5. Step 5: Solve for x
    x = 688,410,896.56/26,665.80
  6. Step 6: Final answer
    x = 25,816.25

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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.