Home / 21,275.66-29,237.08-20,299.97

Finding the Fourth Proportional to 21,275.66, 29,237.08 and 20,299.97

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Solution

The fourth proportional to 21,275.66, 29,237.08 and 20,299.97 is: 27,896.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,275.66 : 29,237.08 = 20,299.97 : x
  2. Step 2: Convert to fraction form
    21,275.66/29,237.08 = 20,299.97/x
  3. Step 3: Cross multiply
    21,275.66x = 29,237.08 × 20,299.97
  4. Step 4: Simplify right side
    21,275.66x = 593,511,846.89
  5. Step 5: Solve for x
    x = 593,511,846.89/21,275.66
  6. Step 6: Final answer
    x = 27,896.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.