Home / 40,821.31-61,234.24-12,745.24

Finding the Fourth Proportional to 40,821.31, 61,234.24 and 12,745.24

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Solution

The fourth proportional to 40,821.31, 61,234.24 and 12,745.24 is: 19,118.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,821.31 : 61,234.24 = 12,745.24 : x
  2. Step 2: Convert to fraction form
    40,821.31/61,234.24 = 12,745.24/x
  3. Step 3: Cross multiply
    40,821.31x = 61,234.24 × 12,745.24
  4. Step 4: Simplify right side
    40,821.31x = 780,445,085.02
  5. Step 5: Solve for x
    x = 780,445,085.02/40,821.31
  6. Step 6: Final answer
    x = 19,118.57

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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.