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Finding the Fourth Proportional to 28,714.75, 43,072.13 and 8,994.84

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Solution

The fourth proportional to 28,714.75, 43,072.13 and 8,994.84 is: 13,492.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,714.75 : 43,072.13 = 8,994.84 : x
  2. Step 2: Convert to fraction form
    28,714.75/43,072.13 = 8,994.84/x
  3. Step 3: Cross multiply
    28,714.75x = 43,072.13 × 8,994.84
  4. Step 4: Simplify right side
    28,714.75x = 387,427,068.09
  5. Step 5: Solve for x
    x = 387,427,068.09/28,714.75
  6. Step 6: Final answer
    x = 13,492.27

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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.