Home / 40,209.04-55,491.76-22,309.80

Finding the Fourth Proportional to 40,209.04, 55,491.76 and 22,309.80

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Solution

The fourth proportional to 40,209.04, 55,491.76 and 22,309.80 is: 30,789.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,209.04 : 55,491.76 = 22,309.80 : x
  2. Step 2: Convert to fraction form
    40,209.04/55,491.76 = 22,309.80/x
  3. Step 3: Cross multiply
    40,209.04x = 55,491.76 × 22,309.80
  4. Step 4: Simplify right side
    40,209.04x = 1,238,010,067.25
  5. Step 5: Solve for x
    x = 1,238,010,067.25/40,209.04
  6. Step 6: Final answer
    x = 30,789.35

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1.5x scale

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.