Home / 29,311.72-40,450.31-15,882.99

Finding the Fourth Proportional to 29,311.72, 40,450.31 and 15,882.99

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Solution

The fourth proportional to 29,311.72, 40,450.31 and 15,882.99 is: 21,918.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,311.72 : 40,450.31 = 15,882.99 : x
  2. Step 2: Convert to fraction form
    29,311.72/40,450.31 = 15,882.99/x
  3. Step 3: Cross multiply
    29,311.72x = 40,450.31 × 15,882.99
  4. Step 4: Simplify right side
    29,311.72x = 642,472,033.40
  5. Step 5: Solve for x
    x = 642,472,033.40/29,311.72
  6. Step 6: Final answer
    x = 21,918.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.