Home / 26,268.20-36,261.80-15,661.52

Finding the Fourth Proportional to 26,268.20, 36,261.80 and 15,661.52

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Solution

The fourth proportional to 26,268.20, 36,261.80 and 15,661.52 is: 21,619.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,268.20 : 36,261.80 = 15,661.52 : x
  2. Step 2: Convert to fraction form
    26,268.20/36,261.80 = 15,661.52/x
  3. Step 3: Cross multiply
    26,268.20x = 36,261.80 × 15,661.52
  4. Step 4: Simplify right side
    26,268.20x = 567,914,905.94
  5. Step 5: Solve for x
    x = 567,914,905.94/26,268.20
  6. Step 6: Final answer
    x = 21,619.86

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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.