Home / 22,515.78-33,773.62-21,145.66

Finding the Fourth Proportional to 22,515.78, 33,773.62 and 21,145.66

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Solution

The fourth proportional to 22,515.78, 33,773.62 and 21,145.66 is: 31,718.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,515.78 : 33,773.62 = 21,145.66 : x
  2. Step 2: Convert to fraction form
    22,515.78/33,773.62 = 21,145.66/x
  3. Step 3: Cross multiply
    22,515.78x = 33,773.62 × 21,145.66
  4. Step 4: Simplify right side
    22,515.78x = 714,165,348.19
  5. Step 5: Solve for x
    x = 714,165,348.19/22,515.78
  6. Step 6: Final answer
    x = 31,718.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.