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Finding the Fourth Proportional to 26,744.20, 40,116.30 and 18,968.20

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Solution

The fourth proportional to 26,744.20, 40,116.30 and 18,968.20 is: 28,452.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,744.20 : 40,116.30 = 18,968.20 : x
  2. Step 2: Convert to fraction form
    26,744.20/40,116.30 = 18,968.20/x
  3. Step 3: Cross multiply
    26,744.20x = 40,116.30 × 18,968.20
  4. Step 4: Simplify right side
    26,744.20x = 760,934,001.66
  5. Step 5: Solve for x
    x = 760,934,001.66/26,744.20
  6. Step 6: Final answer
    x = 28,452.30

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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.