Home / 31,687.80-43,725.06-17,539.80

Finding the Fourth Proportional to 31,687.80, 43,725.06 and 17,539.80

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Solution

The fourth proportional to 31,687.80, 43,725.06 and 17,539.80 is: 24,202.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,687.80 : 43,725.06 = 17,539.80 : x
  2. Step 2: Convert to fraction form
    31,687.80/43,725.06 = 17,539.80/x
  3. Step 3: Cross multiply
    31,687.80x = 43,725.06 × 17,539.80
  4. Step 4: Simplify right side
    31,687.80x = 766,928,807.39
  5. Step 5: Solve for x
    x = 766,928,807.39/31,687.80
  6. Step 6: Final answer
    x = 24,202.65

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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.