Home / 19,086.20-28,629.30-13,254.20

Finding the Fourth Proportional to 19,086.20, 28,629.30 and 13,254.20

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Solution

The fourth proportional to 19,086.20, 28,629.30 and 13,254.20 is: 19,881.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,086.20 : 28,629.30 = 13,254.20 : x
  2. Step 2: Convert to fraction form
    19,086.20/28,629.30 = 13,254.20/x
  3. Step 3: Cross multiply
    19,086.20x = 28,629.30 × 13,254.20
  4. Step 4: Simplify right side
    19,086.20x = 379,458,468.06
  5. Step 5: Solve for x
    x = 379,458,468.06/19,086.20
  6. Step 6: Final answer
    x = 19,881.30

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Similar ratio
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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.