Home / 40,198.88-55,423.48-28,727.50

Finding the Fourth Proportional to 40,198.88, 55,423.48 and 28,727.50

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Solution

The fourth proportional to 40,198.88, 55,423.48 and 28,727.50 is: 39,607.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,198.88 : 55,423.48 = 28,727.50 : x
  2. Step 2: Convert to fraction form
    40,198.88/55,423.48 = 28,727.50/x
  3. Step 3: Cross multiply
    40,198.88x = 55,423.48 × 28,727.50
  4. Step 4: Simplify right side
    40,198.88x = 1,592,177,850.77
  5. Step 5: Solve for x
    x = 1,592,177,850.77/40,198.88
  6. Step 6: Final answer
    x = 39,607.52

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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.