Home / 20,181.28-30,277.04-6,330.40

Finding the Fourth Proportional to 20,181.28, 30,277.04 and 6,330.40

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Solution

The fourth proportional to 20,181.28, 30,277.04 and 6,330.40 is: 9,497.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,181.28 : 30,277.04 = 6,330.40 : x
  2. Step 2: Convert to fraction form
    20,181.28/30,277.04 = 6,330.40/x
  3. Step 3: Cross multiply
    20,181.28x = 30,277.04 × 6,330.40
  4. Step 4: Simplify right side
    20,181.28x = 191,665,774.02
  5. Step 5: Solve for x
    x = 191,665,774.02/20,181.28
  6. Step 6: Final answer
    x = 9,497.21

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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.