Home / 29,686.75-40,967.99-20,255.11

Finding the Fourth Proportional to 29,686.75, 40,967.99 and 20,255.11

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Solution

The fourth proportional to 29,686.75, 40,967.99 and 20,255.11 is: 27,952.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,686.75 : 40,967.99 = 20,255.11 : x
  2. Step 2: Convert to fraction form
    29,686.75/40,967.99 = 20,255.11/x
  3. Step 3: Cross multiply
    29,686.75x = 40,967.99 × 20,255.11
  4. Step 4: Simplify right side
    29,686.75x = 829,811,042.65
  5. Step 5: Solve for x
    x = 829,811,042.65/29,686.75
  6. Step 6: Final answer
    x = 27,952.24

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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.