Home / 21,229.72-29,433.15-20,048.74

Finding the Fourth Proportional to 21,229.72, 29,433.15 and 20,048.74

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Solution

The fourth proportional to 21,229.72, 29,433.15 and 20,048.74 is: 27,795.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,229.72 : 29,433.15 = 20,048.74 : x
  2. Step 2: Convert to fraction form
    21,229.72/29,433.15 = 20,048.74/x
  3. Step 3: Cross multiply
    21,229.72x = 29,433.15 × 20,048.74
  4. Step 4: Simplify right side
    21,229.72x = 590,097,571.73
  5. Step 5: Solve for x
    x = 590,097,571.73/21,229.72
  6. Step 6: Final answer
    x = 27,795.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.