Home / 21,422.72-29,566.14-11,993.24

Finding the Fourth Proportional to 21,422.72, 29,566.14 and 11,993.24

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Solution

The fourth proportional to 21,422.72, 29,566.14 and 11,993.24 is: 16,552.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,422.72 : 29,566.14 = 11,993.24 : x
  2. Step 2: Convert to fraction form
    21,422.72/29,566.14 = 11,993.24/x
  3. Step 3: Cross multiply
    21,422.72x = 29,566.14 × 11,993.24
  4. Step 4: Simplify right side
    21,422.72x = 354,593,812.89
  5. Step 5: Solve for x
    x = 354,593,812.89/21,422.72
  6. Step 6: Final answer
    x = 16,552.23

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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.