Home / 40,633.54-60,905.80-20,913.18

Finding the Fourth Proportional to 40,633.54, 60,905.80 and 20,913.18

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Solution

The fourth proportional to 40,633.54, 60,905.80 and 20,913.18 is: 31,346.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,633.54 : 60,905.80 = 20,913.18 : x
  2. Step 2: Convert to fraction form
    40,633.54/60,905.80 = 20,913.18/x
  3. Step 3: Cross multiply
    40,633.54x = 60,905.80 × 20,913.18
  4. Step 4: Simplify right side
    40,633.54x = 1,273,733,958.44
  5. Step 5: Solve for x
    x = 1,273,733,958.44/40,633.54
  6. Step 6: Final answer
    x = 31,346.86

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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.