Home / 20,774.52-28,668.60-11,343.24

Finding the Fourth Proportional to 20,774.52, 28,668.60 and 11,343.24

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Solution

The fourth proportional to 20,774.52, 28,668.60 and 11,343.24 is: 15,653.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,774.52 : 28,668.60 = 11,343.24 : x
  2. Step 2: Convert to fraction form
    20,774.52/28,668.60 = 11,343.24/x
  3. Step 3: Cross multiply
    20,774.52x = 28,668.60 × 11,343.24
  4. Step 4: Simplify right side
    20,774.52x = 325,194,810.26
  5. Step 5: Solve for x
    x = 325,194,810.26/20,774.52
  6. Step 6: Final answer
    x = 15,653.54

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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.