Home / 30,910.38-46,374.81-21,921.81

Finding the Fourth Proportional to 30,910.38, 46,374.81 and 21,921.81

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Solution

The fourth proportional to 30,910.38, 46,374.81 and 21,921.81 is: 32,889.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,910.38 : 46,374.81 = 21,921.81 : x
  2. Step 2: Convert to fraction form
    30,910.38/46,374.81 = 21,921.81/x
  3. Step 3: Cross multiply
    30,910.38x = 46,374.81 × 21,921.81
  4. Step 4: Simplify right side
    30,910.38x = 1,016,619,773.61
  5. Step 5: Solve for x
    x = 1,016,619,773.61/30,910.38
  6. Step 6: Final answer
    x = 32,889.27

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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.