Home / 20,447.28-30,647.88-10,066.32

Finding the Fourth Proportional to 20,447.28, 30,647.88 and 10,066.32

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Solution

The fourth proportional to 20,447.28, 30,647.88 and 10,066.32 is: 15,088.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,447.28 : 30,647.88 = 10,066.32 : x
  2. Step 2: Convert to fraction form
    20,447.28/30,647.88 = 10,066.32/x
  3. Step 3: Cross multiply
    20,447.28x = 30,647.88 × 10,066.32
  4. Step 4: Simplify right side
    20,447.28x = 308,511,367.40
  5. Step 5: Solve for x
    x = 308,511,367.40/20,447.28
  6. Step 6: Final answer
    x = 15,088.14

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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.