Home / 45,431.27-68,149.23-13,838.87

Finding the Fourth Proportional to 45,431.27, 68,149.23 and 13,838.87

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Solution

The fourth proportional to 45,431.27, 68,149.23 and 13,838.87 is: 20,759.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,431.27 : 68,149.23 = 13,838.87 : x
  2. Step 2: Convert to fraction form
    45,431.27/68,149.23 = 13,838.87/x
  3. Step 3: Cross multiply
    45,431.27x = 68,149.23 × 13,838.87
  4. Step 4: Simplify right side
    45,431.27x = 943,108,334.57
  5. Step 5: Solve for x
    x = 943,108,334.57/45,431.27
  6. Step 6: Final answer
    x = 20,759.01

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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.