Home / 31,218.42-43,069.38-19,261.02

Finding the Fourth Proportional to 31,218.42, 43,069.38 and 19,261.02

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Solution

The fourth proportional to 31,218.42, 43,069.38 and 19,261.02 is: 26,572.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,218.42 : 43,069.38 = 19,261.02 : x
  2. Step 2: Convert to fraction form
    31,218.42/43,069.38 = 19,261.02/x
  3. Step 3: Cross multiply
    31,218.42x = 43,069.38 × 19,261.02
  4. Step 4: Simplify right side
    31,218.42x = 829,560,189.57
  5. Step 5: Solve for x
    x = 829,560,189.57/31,218.42
  6. Step 6: Final answer
    x = 26,572.78

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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.