Home / 20,117.28-30,181.68-6,270.24

Finding the Fourth Proportional to 20,117.28, 30,181.68 and 6,270.24

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Solution

The fourth proportional to 20,117.28, 30,181.68 and 6,270.24 is: 9,407.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,117.28 : 30,181.68 = 6,270.24 : x
  2. Step 2: Convert to fraction form
    20,117.28/30,181.68 = 6,270.24/x
  3. Step 3: Cross multiply
    20,117.28x = 30,181.68 × 6,270.24
  4. Step 4: Simplify right side
    20,117.28x = 189,246,377.20
  5. Step 5: Solve for x
    x = 189,246,377.20/20,117.28
  6. Step 6: Final answer
    x = 9,407.16

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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.