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Finding the Fourth Proportional to 26,741.28, 40,111.20 and 8,021.28

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Solution

The fourth proportional to 26,741.28, 40,111.20 and 8,021.28 is: 12,031.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,741.28 : 40,111.20 = 8,021.28 : x
  2. Step 2: Convert to fraction form
    26,741.28/40,111.20 = 8,021.28/x
  3. Step 3: Cross multiply
    26,741.28x = 40,111.20 × 8,021.28
  4. Step 4: Simplify right side
    26,741.28x = 321,743,166.34
  5. Step 5: Solve for x
    x = 321,743,166.34/26,741.28
  6. Step 6: Final answer
    x = 12,031.70

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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.