Home / 28,724.32-43,086.48-13,131

Finding the Fourth Proportional to 28,724.32, 43,086.48 and 13,131

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Solution

The fourth proportional to 28,724.32, 43,086.48 and 13,131 is: 19,696.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,724.32 : 43,086.48 = 13,131 : x
  2. Step 2: Convert to fraction form
    28,724.32/43,086.48 = 13,131/x
  3. Step 3: Cross multiply
    28,724.32x = 43,086.48 × 13,131
  4. Step 4: Simplify right side
    28,724.32x = 565,768,568.88
  5. Step 5: Solve for x
    x = 565,768,568.88/28,724.32
  6. Step 6: Final answer
    x = 19,696.50

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Double scale
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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.