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Finding the Fourth Proportional to 40,444.74, 60,672.78 and 13,782.78

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Solution

The fourth proportional to 40,444.74, 60,672.78 and 13,782.78 is: 20,676.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,444.74 : 60,672.78 = 13,782.78 : x
  2. Step 2: Convert to fraction form
    40,444.74/60,672.78 = 13,782.78/x
  3. Step 3: Cross multiply
    40,444.74x = 60,672.78 × 13,782.78
  4. Step 4: Simplify right side
    40,444.74x = 836,239,578.73
  5. Step 5: Solve for x
    x = 836,239,578.73/40,444.74
  6. Step 6: Final answer
    x = 20,676.10

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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.