Home / 21,805.76-30,092.26-12,247.72

Finding the Fourth Proportional to 21,805.76, 30,092.26 and 12,247.72

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Solution

The fourth proportional to 21,805.76, 30,092.26 and 12,247.72 is: 16,902.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,805.76 : 30,092.26 = 12,247.72 : x
  2. Step 2: Convert to fraction form
    21,805.76/30,092.26 = 12,247.72/x
  3. Step 3: Cross multiply
    21,805.76x = 30,092.26 × 12,247.72
  4. Step 4: Simplify right side
    21,805.76x = 368,561,574.65
  5. Step 5: Solve for x
    x = 368,561,574.65/21,805.76
  6. Step 6: Final answer
    x = 16,902.03

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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.