Home / 20,236.14-30,335.58-13,664.61

Finding the Fourth Proportional to 20,236.14, 30,335.58 and 13,664.61

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Solution

The fourth proportional to 20,236.14, 30,335.58 and 13,664.61 is: 20,484.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,236.14 : 30,335.58 = 13,664.61 : x
  2. Step 2: Convert to fraction form
    20,236.14/30,335.58 = 13,664.61/x
  3. Step 3: Cross multiply
    20,236.14x = 30,335.58 × 13,664.61
  4. Step 4: Simplify right side
    20,236.14x = 414,523,869.82
  5. Step 5: Solve for x
    x = 414,523,869.82/20,236.14
  6. Step 6: Final answer
    x = 20,484.33

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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.