Home / 28,741.71-43,112.58-7,965.21

Finding the Fourth Proportional to 28,741.71, 43,112.58 and 7,965.21

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Solution

The fourth proportional to 28,741.71, 43,112.58 and 7,965.21 is: 11,947.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,741.71 : 43,112.58 = 7,965.21 : x
  2. Step 2: Convert to fraction form
    28,741.71/43,112.58 = 7,965.21/x
  3. Step 3: Cross multiply
    28,741.71x = 43,112.58 × 7,965.21
  4. Step 4: Simplify right side
    28,741.71x = 343,400,753.34
  5. Step 5: Solve for x
    x = 343,400,753.34/28,741.71
  6. Step 6: Final answer
    x = 11,947.82

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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.