Home / 20,895.96-31,308.63-10,351.92

Finding the Fourth Proportional to 20,895.96, 31,308.63 and 10,351.92

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Solution

The fourth proportional to 20,895.96, 31,308.63 and 10,351.92 is: 15,510.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,895.96 : 31,308.63 = 10,351.92 : x
  2. Step 2: Convert to fraction form
    20,895.96/31,308.63 = 10,351.92/x
  3. Step 3: Cross multiply
    20,895.96x = 31,308.63 × 10,351.92
  4. Step 4: Simplify right side
    20,895.96x = 324,104,433.07
  5. Step 5: Solve for x
    x = 324,104,433.07/20,895.96
  6. Step 6: Final answer
    x = 15,510.39

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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.