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Finding the Fourth Proportional to 40,599.75, 60,909.39 and 12,897.75

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Solution

The fourth proportional to 40,599.75, 60,909.39 and 12,897.75 is: 19,349.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,599.75 : 60,909.39 = 12,897.75 : x
  2. Step 2: Convert to fraction form
    40,599.75/60,909.39 = 12,897.75/x
  3. Step 3: Cross multiply
    40,599.75x = 60,909.39 × 12,897.75
  4. Step 4: Simplify right side
    40,599.75x = 785,594,084.87
  5. Step 5: Solve for x
    x = 785,594,084.87/40,599.75
  6. Step 6: Final answer
    x = 19,349.73

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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.