Home / 39,909.77-55,077.94-22,004.72

Finding the Fourth Proportional to 39,909.77, 55,077.94 and 22,004.72

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Solution

The fourth proportional to 39,909.77, 55,077.94 and 22,004.72 is: 30,367.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,909.77 : 55,077.94 = 22,004.72 : x
  2. Step 2: Convert to fraction form
    39,909.77/55,077.94 = 22,004.72/x
  3. Step 3: Cross multiply
    39,909.77x = 55,077.94 × 22,004.72
  4. Step 4: Simplify right side
    39,909.77x = 1,211,974,647.88
  5. Step 5: Solve for x
    x = 1,211,974,647.88/39,909.77
  6. Step 6: Final answer
    x = 30,367.87

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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.