Home / 20,883.94-28,819.85-11,452.50

Finding the Fourth Proportional to 20,883.94, 28,819.85 and 11,452.50

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Solution

The fourth proportional to 20,883.94, 28,819.85 and 11,452.50 is: 15,804.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,883.94 : 28,819.85 = 11,452.50 : x
  2. Step 2: Convert to fraction form
    20,883.94/28,819.85 = 11,452.50/x
  3. Step 3: Cross multiply
    20,883.94x = 28,819.85 × 11,452.50
  4. Step 4: Simplify right side
    20,883.94x = 330,059,274.86
  5. Step 5: Solve for x
    x = 330,059,274.86/20,883.94
  6. Step 6: Final answer
    x = 15,804.46

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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.