Home / 20,124.30-30,186.45-7,644.33

Finding the Fourth Proportional to 20,124.30, 30,186.45 and 7,644.33

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Solution

The fourth proportional to 20,124.30, 30,186.45 and 7,644.33 is: 11,466.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,124.30 : 30,186.45 = 7,644.33 : x
  2. Step 2: Convert to fraction form
    20,124.30/30,186.45 = 7,644.33/x
  3. Step 3: Cross multiply
    20,124.30x = 30,186.45 × 7,644.33
  4. Step 4: Simplify right side
    20,124.30x = 230,755,185.33
  5. Step 5: Solve for x
    x = 230,755,185.33/20,124.30
  6. Step 6: Final answer
    x = 11,466.50

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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.