Home / 40,149.04-55,408.80-22,245.70

Finding the Fourth Proportional to 40,149.04, 55,408.80 and 22,245.70

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Solution

The fourth proportional to 40,149.04, 55,408.80 and 22,245.70 is: 30,700.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,149.04 : 55,408.80 = 22,245.70 : x
  2. Step 2: Convert to fraction form
    40,149.04/55,408.80 = 22,245.70/x
  3. Step 3: Cross multiply
    40,149.04x = 55,408.80 × 22,245.70
  4. Step 4: Simplify right side
    40,149.04x = 1,232,607,542.16
  5. Step 5: Solve for x
    x = 1,232,607,542.16/40,149.04
  6. Step 6: Final answer
    x = 30,700.80

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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.