Home / 20,052.81-30,080.21-5,261.76

Finding the Fourth Proportional to 20,052.81, 30,080.21 and 5,261.76

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Solution

The fourth proportional to 20,052.81, 30,080.21 and 5,261.76 is: 7,892.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,052.81 : 30,080.21 = 5,261.76 : x
  2. Step 2: Convert to fraction form
    20,052.81/30,080.21 = 5,261.76/x
  3. Step 3: Cross multiply
    20,052.81x = 30,080.21 × 5,261.76
  4. Step 4: Simplify right side
    20,052.81x = 158,274,819.46
  5. Step 5: Solve for x
    x = 158,274,819.46/20,052.81
  6. Step 6: Final answer
    x = 7,892.90

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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.