Home / 26,665.61-36,851.25-21,877.90

Finding the Fourth Proportional to 26,665.61, 36,851.25 and 21,877.90

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Solution

The fourth proportional to 26,665.61, 36,851.25 and 21,877.90 is: 30,234.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,665.61 : 36,851.25 = 21,877.90 : x
  2. Step 2: Convert to fraction form
    26,665.61/36,851.25 = 21,877.90/x
  3. Step 3: Cross multiply
    26,665.61x = 36,851.25 × 21,877.90
  4. Step 4: Simplify right side
    26,665.61x = 806,227,952.29
  5. Step 5: Solve for x
    x = 806,227,952.29/26,665.61
  6. Step 6: Final answer
    x = 30,234.75

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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.