Home / 20,407.44-30,611.10-7,260.32

Finding the Fourth Proportional to 20,407.44, 30,611.10 and 7,260.32

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Solution

The fourth proportional to 20,407.44, 30,611.10 and 7,260.32 is: 10,890.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,407.44 : 30,611.10 = 7,260.32 : x
  2. Step 2: Convert to fraction form
    20,407.44/30,611.10 = 7,260.32/x
  3. Step 3: Cross multiply
    20,407.44x = 30,611.10 × 7,260.32
  4. Step 4: Simplify right side
    20,407.44x = 222,246,381.55
  5. Step 5: Solve for x
    x = 222,246,381.55/20,407.44
  6. Step 6: Final answer
    x = 10,890.46

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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.