Home / 20,221.98-30,339-14,612.33

Finding the Fourth Proportional to 20,221.98, 30,339 and 14,612.33

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Solution

The fourth proportional to 20,221.98, 30,339 and 14,612.33 is: 21,922.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,221.98 : 30,339 = 14,612.33 : x
  2. Step 2: Convert to fraction form
    20,221.98/30,339 = 14,612.33/x
  3. Step 3: Cross multiply
    20,221.98x = 30,339 × 14,612.33
  4. Step 4: Simplify right side
    20,221.98x = 443,323,479.87
  5. Step 5: Solve for x
    x = 443,323,479.87/20,221.98
  6. Step 6: Final answer
    x = 21,922.85

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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.