Home / 39,764.34-54,874.77-21,860.50

Finding the Fourth Proportional to 39,764.34, 54,874.77 and 21,860.50

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Solution

The fourth proportional to 39,764.34, 54,874.77 and 21,860.50 is: 30,167.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,764.34 : 54,874.77 = 21,860.50 : x
  2. Step 2: Convert to fraction form
    39,764.34/54,874.77 = 21,860.50/x
  3. Step 3: Cross multiply
    39,764.34x = 54,874.77 × 21,860.50
  4. Step 4: Simplify right side
    39,764.34x = 1,199,589,909.59
  5. Step 5: Solve for x
    x = 1,199,589,909.59/39,764.34
  6. Step 6: Final answer
    x = 30,167.48

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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.