Home / 28,591.12-42,886.68-7,816.24

Finding the Fourth Proportional to 28,591.12, 42,886.68 and 7,816.24

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Solution

The fourth proportional to 28,591.12, 42,886.68 and 7,816.24 is: 11,724.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,591.12 : 42,886.68 = 7,816.24 : x
  2. Step 2: Convert to fraction form
    28,591.12/42,886.68 = 7,816.24/x
  3. Step 3: Cross multiply
    28,591.12x = 42,886.68 × 7,816.24
  4. Step 4: Simplify right side
    28,591.12x = 335,212,583.68
  5. Step 5: Solve for x
    x = 335,212,583.68/28,591.12
  6. Step 6: Final answer
    x = 11,724.36

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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.