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Finding the Fourth Proportional to 35,165.56, 52,711.88 and 21,987.68

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Solution

The fourth proportional to 35,165.56, 52,711.88 and 21,987.68 is: 32,958.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,165.56 : 52,711.88 = 21,987.68 : x
  2. Step 2: Convert to fraction form
    35,165.56/52,711.88 = 21,987.68/x
  3. Step 3: Cross multiply
    35,165.56x = 52,711.88 × 21,987.68
  4. Step 4: Simplify right side
    35,165.56x = 1,159,011,949.64
  5. Step 5: Solve for x
    x = 1,159,011,949.64/35,165.56
  6. Step 6: Final answer
    x = 32,958.72

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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.