Home / 38,163.28-52,668.56-21,173

Finding the Fourth Proportional to 38,163.28, 52,668.56 and 21,173

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Solution

The fourth proportional to 38,163.28, 52,668.56 and 21,173 is: 29,220.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,163.28 : 52,668.56 = 21,173 : x
  2. Step 2: Convert to fraction form
    38,163.28/52,668.56 = 21,173/x
  3. Step 3: Cross multiply
    38,163.28x = 52,668.56 × 21,173
  4. Step 4: Simplify right side
    38,163.28x = 1,115,151,420.88
  5. Step 5: Solve for x
    x = 1,115,151,420.88/38,163.28
  6. Step 6: Final answer
    x = 29,220.53

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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.