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Finding the Fourth Proportional to 40,404.30, 60,597.81 and 12,687.18

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Solution

The fourth proportional to 40,404.30, 60,597.81 and 12,687.18 is: 19,028.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,404.30 : 60,597.81 = 12,687.18 : x
  2. Step 2: Convert to fraction form
    40,404.30/60,597.81 = 12,687.18/x
  3. Step 3: Cross multiply
    40,404.30x = 60,597.81 × 12,687.18
  4. Step 4: Simplify right side
    40,404.30x = 768,815,323.08
  5. Step 5: Solve for x
    x = 768,815,323.08/40,404.30
  6. Step 6: Final answer
    x = 19,028.06

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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.