Home / 28,974.27-43,461.42-13,389.87

Finding the Fourth Proportional to 28,974.27, 43,461.42 and 13,389.87

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Solution

The fourth proportional to 28,974.27, 43,461.42 and 13,389.87 is: 20,084.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,974.27 : 43,461.42 = 13,389.87 : x
  2. Step 2: Convert to fraction form
    28,974.27/43,461.42 = 13,389.87/x
  3. Step 3: Cross multiply
    28,974.27x = 43,461.42 × 13,389.87
  4. Step 4: Simplify right side
    28,974.27x = 581,942,763.82
  5. Step 5: Solve for x
    x = 581,942,763.82/28,974.27
  6. Step 6: Final answer
    x = 20,084.81

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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.