Home / 20,451.44-30,677.54-6,411.15

Finding the Fourth Proportional to 20,451.44, 30,677.54 and 6,411.15

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Solution

The fourth proportional to 20,451.44, 30,677.54 and 6,411.15 is: 9,616.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,451.44 : 30,677.54 = 6,411.15 : x
  2. Step 2: Convert to fraction form
    20,451.44/30,677.54 = 6,411.15/x
  3. Step 3: Cross multiply
    20,451.44x = 30,677.54 × 6,411.15
  4. Step 4: Simplify right side
    20,451.44x = 196,678,278.52
  5. Step 5: Solve for x
    x = 196,678,278.52/20,451.44
  6. Step 6: Final answer
    x = 9,616.84

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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.