Home / 29,111.75-40,174.22-15,863.75

Finding the Fourth Proportional to 29,111.75, 40,174.22 and 15,863.75

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Solution

The fourth proportional to 29,111.75, 40,174.22 and 15,863.75 is: 21,891.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,111.75 : 40,174.22 = 15,863.75 : x
  2. Step 2: Convert to fraction form
    29,111.75/40,174.22 = 15,863.75/x
  3. Step 3: Cross multiply
    29,111.75x = 40,174.22 × 15,863.75
  4. Step 4: Simplify right side
    29,111.75x = 637,313,782.53
  5. Step 5: Solve for x
    x = 637,313,782.53/29,111.75
  6. Step 6: Final answer
    x = 21,891.98

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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.