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Finding the Fourth Proportional to 40,374.76, 60,571.85 and 12,672.76

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Solution

The fourth proportional to 40,374.76, 60,571.85 and 12,672.76 is: 19,012.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,374.76 : 60,571.85 = 12,672.76 : x
  2. Step 2: Convert to fraction form
    40,374.76/60,571.85 = 12,672.76/x
  3. Step 3: Cross multiply
    40,374.76x = 60,571.85 × 12,672.76
  4. Step 4: Simplify right side
    40,374.76x = 767,612,517.81
  5. Step 5: Solve for x
    x = 767,612,517.81/40,374.76
  6. Step 6: Final answer
    x = 19,012.19

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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.