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Finding the Fourth Proportional to 22,119.76, 33,101.68 and 13,803.69

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Solution

The fourth proportional to 22,119.76, 33,101.68 and 13,803.69 is: 20,656.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,119.76 : 33,101.68 = 13,803.69 : x
  2. Step 2: Convert to fraction form
    22,119.76/33,101.68 = 13,803.69/x
  3. Step 3: Cross multiply
    22,119.76x = 33,101.68 × 13,803.69
  4. Step 4: Simplify right side
    22,119.76x = 456,925,329.20
  5. Step 5: Solve for x
    x = 456,925,329.20/22,119.76
  6. Step 6: Final answer
    x = 20,656.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.