Home / 40,820.41-61,232.89-12,744.34

Finding the Fourth Proportional to 40,820.41, 61,232.89 and 12,744.34

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Solution

The fourth proportional to 40,820.41, 61,232.89 and 12,744.34 is: 19,117.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,820.41 : 61,232.89 = 12,744.34 : x
  2. Step 2: Convert to fraction form
    40,820.41/61,232.89 = 12,744.34/x
  3. Step 3: Cross multiply
    40,820.41x = 61,232.89 × 12,744.34
  4. Step 4: Simplify right side
    40,820.41x = 780,372,723.11
  5. Step 5: Solve for x
    x = 780,372,723.11/40,820.41
  6. Step 6: Final answer
    x = 19,117.22

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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.