Home / 20,440.48-30,634.56-10,577.92

Finding the Fourth Proportional to 20,440.48, 30,634.56 and 10,577.92

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Solution

The fourth proportional to 20,440.48, 30,634.56 and 10,577.92 is: 15,853.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,440.48 : 30,634.56 = 10,577.92 : x
  2. Step 2: Convert to fraction form
    20,440.48/30,634.56 = 10,577.92/x
  3. Step 3: Cross multiply
    20,440.48x = 30,634.56 × 10,577.92
  4. Step 4: Simplify right side
    20,440.48x = 324,049,924.92
  5. Step 5: Solve for x
    x = 324,049,924.92/20,440.48
  6. Step 6: Final answer
    x = 15,853.34

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