Home / 21,934.52-30,269.90-12,503.96

Finding the Fourth Proportional to 21,934.52, 30,269.90 and 12,503.96

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Solution

The fourth proportional to 21,934.52, 30,269.90 and 12,503.96 is: 17,255.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,934.52 : 30,269.90 = 12,503.96 : x
  2. Step 2: Convert to fraction form
    21,934.52/30,269.90 = 12,503.96/x
  3. Step 3: Cross multiply
    21,934.52x = 30,269.90 × 12,503.96
  4. Step 4: Simplify right side
    21,934.52x = 378,493,618.80
  5. Step 5: Solve for x
    x = 378,493,618.80/21,934.52
  6. Step 6: Final answer
    x = 17,255.61

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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.