Home / 20,893.14-31,331.96-14,649.96

Finding the Fourth Proportional to 20,893.14, 31,331.96 and 14,649.96

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Solution

The fourth proportional to 20,893.14, 31,331.96 and 14,649.96 is: 21,969.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,893.14 : 31,331.96 = 14,649.96 : x
  2. Step 2: Convert to fraction form
    20,893.14/31,331.96 = 14,649.96/x
  3. Step 3: Cross multiply
    20,893.14x = 31,331.96 × 14,649.96
  4. Step 4: Simplify right side
    20,893.14x = 459,011,960.72
  5. Step 5: Solve for x
    x = 459,011,960.72/20,893.14
  6. Step 6: Final answer
    x = 21,969.51

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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.