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Finding the Fourth Proportional to 28,714.46, 43,071.68 and 8,994.56

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Solution

The fourth proportional to 28,714.46, 43,071.68 and 8,994.56 is: 13,491.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,714.46 : 43,071.68 = 8,994.56 : x
  2. Step 2: Convert to fraction form
    28,714.46/43,071.68 = 8,994.56/x
  3. Step 3: Cross multiply
    28,714.46x = 43,071.68 × 8,994.56
  4. Step 4: Simplify right side
    28,714.46x = 387,410,617.19
  5. Step 5: Solve for x
    x = 387,410,617.19/28,714.46
  6. Step 6: Final answer
    x = 13,491.83

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Similar ratio
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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.