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Finding the Fourth Proportional to 26,820.56, 40,230.84 and 8,354

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Solution

The fourth proportional to 26,820.56, 40,230.84 and 8,354 is: 12,531.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,820.56 : 40,230.84 = 8,354 : x
  2. Step 2: Convert to fraction form
    26,820.56/40,230.84 = 8,354/x
  3. Step 3: Cross multiply
    26,820.56x = 40,230.84 × 8,354
  4. Step 4: Simplify right side
    26,820.56x = 336,088,437.36
  5. Step 5: Solve for x
    x = 336,088,437.36/26,820.56
  6. Step 6: Final answer
    x = 12,531.00

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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.