Home / 39,187.62-54,079.31-21,282.98

Finding the Fourth Proportional to 39,187.62, 54,079.31 and 21,282.98

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Solution

The fourth proportional to 39,187.62, 54,079.31 and 21,282.98 is: 29,370.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,187.62 : 54,079.31 = 21,282.98 : x
  2. Step 2: Convert to fraction form
    39,187.62/54,079.31 = 21,282.98/x
  3. Step 3: Cross multiply
    39,187.62x = 54,079.31 × 21,282.98
  4. Step 4: Simplify right side
    39,187.62x = 1,150,968,655.95
  5. Step 5: Solve for x
    x = 1,150,968,655.95/39,187.62
  6. Step 6: Final answer
    x = 29,370.72

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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.