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Finding the Fourth Proportional to 27,216.80, 40,822.80 and 7,493.60

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Solution

The fourth proportional to 27,216.80, 40,822.80 and 7,493.60 is: 11,239.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,216.80 : 40,822.80 = 7,493.60 : x
  2. Step 2: Convert to fraction form
    27,216.80/40,822.80 = 7,493.60/x
  3. Step 3: Cross multiply
    27,216.80x = 40,822.80 × 7,493.60
  4. Step 4: Simplify right side
    27,216.80x = 305,909,734.08
  5. Step 5: Solve for x
    x = 305,909,734.08/27,216.80
  6. Step 6: Final answer
    x = 11,239.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.