Home / 15,680.36-23,520.54-3,993.14

Finding the Fourth Proportional to 15,680.36, 23,520.54 and 3,993.14

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Solution

The fourth proportional to 15,680.36, 23,520.54 and 3,993.14 is: 5,989.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,680.36 : 23,520.54 = 3,993.14 : x
  2. Step 2: Convert to fraction form
    15,680.36/23,520.54 = 3,993.14/x
  3. Step 3: Cross multiply
    15,680.36x = 23,520.54 × 3,993.14
  4. Step 4: Simplify right side
    15,680.36x = 93,920,809.10
  5. Step 5: Solve for x
    x = 93,920,809.10/15,680.36
  6. Step 6: Final answer
    x = 5,989.71

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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.