Home / 20,746.46-31,119.68-7,599.86

Finding the Fourth Proportional to 20,746.46, 31,119.68 and 7,599.86

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Solution

The fourth proportional to 20,746.46, 31,119.68 and 7,599.86 is: 11,399.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,746.46 : 31,119.68 = 7,599.86 : x
  2. Step 2: Convert to fraction form
    20,746.46/31,119.68 = 7,599.86/x
  3. Step 3: Cross multiply
    20,746.46x = 31,119.68 × 7,599.86
  4. Step 4: Simplify right side
    20,746.46x = 236,505,211.24
  5. Step 5: Solve for x
    x = 236,505,211.24/20,746.46
  6. Step 6: Final answer
    x = 11,399.79

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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.