Home / 20,699.64-31,028.69-9,614.11

Finding the Fourth Proportional to 20,699.64, 31,028.69 and 9,614.11

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Solution

The fourth proportional to 20,699.64, 31,028.69 and 9,614.11 is: 14,411.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,699.64 : 31,028.69 = 9,614.11 : x
  2. Step 2: Convert to fraction form
    20,699.64/31,028.69 = 9,614.11/x
  3. Step 3: Cross multiply
    20,699.64x = 31,028.69 × 9,614.11
  4. Step 4: Simplify right side
    20,699.64x = 298,313,207.35
  5. Step 5: Solve for x
    x = 298,313,207.35/20,699.64
  6. Step 6: Final answer
    x = 14,411.52

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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.