Home / 29,275.14-40,399.80-15,846.42

Finding the Fourth Proportional to 29,275.14, 40,399.80 and 15,846.42

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Solution

The fourth proportional to 29,275.14, 40,399.80 and 15,846.42 is: 21,868.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,275.14 : 40,399.80 = 15,846.42 : x
  2. Step 2: Convert to fraction form
    29,275.14/40,399.80 = 15,846.42/x
  3. Step 3: Cross multiply
    29,275.14x = 40,399.80 × 15,846.42
  4. Step 4: Simplify right side
    29,275.14x = 640,192,198.72
  5. Step 5: Solve for x
    x = 640,192,198.72/29,275.14
  6. Step 6: Final answer
    x = 21,868.12

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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.