Home / 20,508.44-28,300.84-11,557.74

Finding the Fourth Proportional to 20,508.44, 28,300.84 and 11,557.74

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Solution

The fourth proportional to 20,508.44, 28,300.84 and 11,557.74 is: 15,949.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,508.44 : 28,300.84 = 11,557.74 : x
  2. Step 2: Convert to fraction form
    20,508.44/28,300.84 = 11,557.74/x
  3. Step 3: Cross multiply
    20,508.44x = 28,300.84 × 11,557.74
  4. Step 4: Simplify right side
    20,508.44x = 327,093,750.50
  5. Step 5: Solve for x
    x = 327,093,750.50/20,508.44
  6. Step 6: Final answer
    x = 15,949.23

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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.