Home / 39,548.11-54,575.67-21,642.76

Finding the Fourth Proportional to 39,548.11, 54,575.67 and 21,642.76

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Solution

The fourth proportional to 39,548.11, 54,575.67 and 21,642.76 is: 29,866.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,548.11 : 54,575.67 = 21,642.76 : x
  2. Step 2: Convert to fraction form
    39,548.11/54,575.67 = 21,642.76/x
  3. Step 3: Cross multiply
    39,548.11x = 54,575.67 × 21,642.76
  4. Step 4: Simplify right side
    39,548.11x = 1,181,167,978.27
  5. Step 5: Solve for x
    x = 1,181,167,978.27/39,548.11
  6. Step 6: Final answer
    x = 29,866.61

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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.