Home / 28,742.12-43,113.18-7,965.08

Finding the Fourth Proportional to 28,742.12, 43,113.18 and 7,965.08

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Solution

The fourth proportional to 28,742.12, 43,113.18 and 7,965.08 is: 11,947.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,742.12 : 43,113.18 = 7,965.08 : x
  2. Step 2: Convert to fraction form
    28,742.12/43,113.18 = 7,965.08/x
  3. Step 3: Cross multiply
    28,742.12x = 43,113.18 × 7,965.08
  4. Step 4: Simplify right side
    28,742.12x = 343,399,927.75
  5. Step 5: Solve for x
    x = 343,399,927.75/28,742.12
  6. Step 6: Final answer
    x = 11,947.62

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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.