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Finding the Fourth Proportional to 28,968.20, 43,452.30 and 22,407.20

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Solution

The fourth proportional to 28,968.20, 43,452.30 and 22,407.20 is: 33,610.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,968.20 : 43,452.30 = 22,407.20 : x
  2. Step 2: Convert to fraction form
    28,968.20/43,452.30 = 22,407.20/x
  3. Step 3: Cross multiply
    28,968.20x = 43,452.30 × 22,407.20
  4. Step 4: Simplify right side
    28,968.20x = 973,644,376.56
  5. Step 5: Solve for x
    x = 973,644,376.56/28,968.20
  6. Step 6: Final answer
    x = 33,610.80

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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.