Home / 20,284.90-27,992.20-11,330.62

Finding the Fourth Proportional to 20,284.90, 27,992.20 and 11,330.62

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Solution

The fourth proportional to 20,284.90, 27,992.20 and 11,330.62 is: 15,635.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,284.90 : 27,992.20 = 11,330.62 : x
  2. Step 2: Convert to fraction form
    20,284.90/27,992.20 = 11,330.62/x
  3. Step 3: Cross multiply
    20,284.90x = 27,992.20 × 11,330.62
  4. Step 4: Simplify right side
    20,284.90x = 317,168,981.16
  5. Step 5: Solve for x
    x = 317,168,981.16/20,284.90
  6. Step 6: Final answer
    x = 15,635.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.