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Finding the Fourth Proportional to 21,956.97, 32,937 and 8,809.35

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Solution

The fourth proportional to 21,956.97, 32,937 and 8,809.35 is: 13,214.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,956.97 : 32,937 = 8,809.35 : x
  2. Step 2: Convert to fraction form
    21,956.97/32,937 = 8,809.35/x
  3. Step 3: Cross multiply
    21,956.97x = 32,937 × 8,809.35
  4. Step 4: Simplify right side
    21,956.97x = 290,153,560.95
  5. Step 5: Solve for x
    x = 290,153,560.95/21,956.97
  6. Step 6: Final answer
    x = 13,214.64

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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.