Home / 40,156.11-60,289.34-20,447.91

Finding the Fourth Proportional to 40,156.11, 60,289.34 and 20,447.91

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Solution

The fourth proportional to 40,156.11, 60,289.34 and 20,447.91 is: 30,699.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,156.11 : 60,289.34 = 20,447.91 : x
  2. Step 2: Convert to fraction form
    40,156.11/60,289.34 = 20,447.91/x
  3. Step 3: Cross multiply
    40,156.11x = 60,289.34 × 20,447.91
  4. Step 4: Simplify right side
    40,156.11x = 1,232,790,896.04
  5. Step 5: Solve for x
    x = 1,232,790,896.04/40,156.11
  6. Step 6: Final answer
    x = 30,699.96

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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.