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Finding the Fourth Proportional to 40,374.86, 60,571.98 and 12,672.86

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Solution

The fourth proportional to 40,374.86, 60,571.98 and 12,672.86 is: 19,012.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,374.86 : 60,571.98 = 12,672.86 : x
  2. Step 2: Convert to fraction form
    40,374.86/60,571.98 = 12,672.86/x
  3. Step 3: Cross multiply
    40,374.86x = 60,571.98 × 12,672.86
  4. Step 4: Simplify right side
    40,374.86x = 767,619,919.60
  5. Step 5: Solve for x
    x = 767,619,919.60/40,374.86
  6. Step 6: Final answer
    x = 19,012.33

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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.