Home / 20,883.77-28,819.47-11,323.56

Finding the Fourth Proportional to 20,883.77, 28,819.47 and 11,323.56

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Solution

The fourth proportional to 20,883.77, 28,819.47 and 11,323.56 is: 15,626.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,883.77 : 28,819.47 = 11,323.56 : x
  2. Step 2: Convert to fraction form
    20,883.77/28,819.47 = 11,323.56/x
  3. Step 3: Cross multiply
    20,883.77x = 28,819.47 × 11,323.56
  4. Step 4: Simplify right side
    20,883.77x = 326,339,026.02
  5. Step 5: Solve for x
    x = 326,339,026.02/20,883.77
  6. Step 6: Final answer
    x = 15,626.44

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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.