Home / 22,158.10-30,515.97-21,674.26

Finding the Fourth Proportional to 22,158.10, 30,515.97 and 21,674.26

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Solution

The fourth proportional to 22,158.10, 30,515.97 and 21,674.26 is: 29,849.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,158.10 : 30,515.97 = 21,674.26 : x
  2. Step 2: Convert to fraction form
    22,158.10/30,515.97 = 21,674.26/x
  3. Step 3: Cross multiply
    22,158.10x = 30,515.97 × 21,674.26
  4. Step 4: Simplify right side
    22,158.10x = 661,411,067.93
  5. Step 5: Solve for x
    x = 661,411,067.93/22,158.10
  6. Step 6: Final answer
    x = 29,849.63

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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.