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Finding the Fourth Proportional to 40,375.80, 60,573.42 and 12,673.80

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Solution

The fourth proportional to 40,375.80, 60,573.42 and 12,673.80 is: 19,013.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,375.80 : 60,573.42 = 12,673.80 : x
  2. Step 2: Convert to fraction form
    40,375.80/60,573.42 = 12,673.80/x
  3. Step 3: Cross multiply
    40,375.80x = 60,573.42 × 12,673.80
  4. Step 4: Simplify right side
    40,375.80x = 767,695,410.40
  5. Step 5: Solve for x
    x = 767,695,410.40/40,375.80
  6. Step 6: Final answer
    x = 19,013.75

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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.