Home / 21,922.20-30,245.24-12,484.08

Finding the Fourth Proportional to 21,922.20, 30,245.24 and 12,484.08

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Solution

The fourth proportional to 21,922.20, 30,245.24 and 12,484.08 is: 17,223.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,922.20 : 30,245.24 = 12,484.08 : x
  2. Step 2: Convert to fraction form
    21,922.20/30,245.24 = 12,484.08/x
  3. Step 3: Cross multiply
    21,922.20x = 30,245.24 × 12,484.08
  4. Step 4: Simplify right side
    21,922.20x = 377,583,995.78
  5. Step 5: Solve for x
    x = 377,583,995.78/21,922.20
  6. Step 6: Final answer
    x = 17,223.82

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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.