Home / 20,976.84-28,944.36-12,593.52

Finding the Fourth Proportional to 20,976.84, 28,944.36 and 12,593.52

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Solution

The fourth proportional to 20,976.84, 28,944.36 and 12,593.52 is: 17,376.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,976.84 : 28,944.36 = 12,593.52 : x
  2. Step 2: Convert to fraction form
    20,976.84/28,944.36 = 12,593.52/x
  3. Step 3: Cross multiply
    20,976.84x = 28,944.36 × 12,593.52
  4. Step 4: Simplify right side
    20,976.84x = 364,511,376.55
  5. Step 5: Solve for x
    x = 364,511,376.55/20,976.84
  6. Step 6: Final answer
    x = 17,376.85

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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.