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Finding the Fourth Proportional to 34,990.87, 52,486.11 and 8,695.60

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Solution

The fourth proportional to 34,990.87, 52,486.11 and 8,695.60 is: 13,043.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,990.87 : 52,486.11 = 8,695.60 : x
  2. Step 2: Convert to fraction form
    34,990.87/52,486.11 = 8,695.60/x
  3. Step 3: Cross multiply
    34,990.87x = 52,486.11 × 8,695.60
  4. Step 4: Simplify right side
    34,990.87x = 456,398,218.12
  5. Step 5: Solve for x
    x = 456,398,218.12/34,990.87
  6. Step 6: Final answer
    x = 13,043.35

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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.