Home / 40,821.49-61,234.51-12,745.42

Finding the Fourth Proportional to 40,821.49, 61,234.51 and 12,745.42

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Solution

The fourth proportional to 40,821.49, 61,234.51 and 12,745.42 is: 19,118.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,821.49 : 61,234.51 = 12,745.42 : x
  2. Step 2: Convert to fraction form
    40,821.49/61,234.51 = 12,745.42/x
  3. Step 3: Cross multiply
    40,821.49x = 61,234.51 × 12,745.42
  4. Step 4: Simplify right side
    40,821.49x = 780,459,387.39
  5. Step 5: Solve for x
    x = 780,459,387.39/40,821.49
  6. Step 6: Final answer
    x = 19,118.84

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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.