Home / 20,774.04-28,668.16-11,342.60

Finding the Fourth Proportional to 20,774.04, 28,668.16 and 11,342.60

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Solution

The fourth proportional to 20,774.04, 28,668.16 and 11,342.60 is: 15,652.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,774.04 : 28,668.16 = 11,342.60 : x
  2. Step 2: Convert to fraction form
    20,774.04/28,668.16 = 11,342.60/x
  3. Step 3: Cross multiply
    20,774.04x = 28,668.16 × 11,342.60
  4. Step 4: Simplify right side
    20,774.04x = 325,171,471.62
  5. Step 5: Solve for x
    x = 325,171,471.62/20,774.04
  6. Step 6: Final answer
    x = 15,652.78

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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.