Home / 22,118.08-30,480.96-15,819.52

Finding the Fourth Proportional to 22,118.08, 30,480.96 and 15,819.52

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Solution

The fourth proportional to 22,118.08, 30,480.96 and 15,819.52 is: 21,800.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,118.08 : 30,480.96 = 15,819.52 : x
  2. Step 2: Convert to fraction form
    22,118.08/30,480.96 = 15,819.52/x
  3. Step 3: Cross multiply
    22,118.08x = 30,480.96 × 15,819.52
  4. Step 4: Simplify right side
    22,118.08x = 482,194,156.34
  5. Step 5: Solve for x
    x = 482,194,156.34/22,118.08
  6. Step 6: Final answer
    x = 21,800.90

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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.