Home / 21,293.28-31,959.66-10,770.77

Finding the Fourth Proportional to 21,293.28, 31,959.66 and 10,770.77

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Solution

The fourth proportional to 21,293.28, 31,959.66 and 10,770.77 is: 16,166.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,293.28 : 31,959.66 = 10,770.77 : x
  2. Step 2: Convert to fraction form
    21,293.28/31,959.66 = 10,770.77/x
  3. Step 3: Cross multiply
    21,293.28x = 31,959.66 × 10,770.77
  4. Step 4: Simplify right side
    21,293.28x = 344,229,933.49
  5. Step 5: Solve for x
    x = 344,229,933.49/21,293.28
  6. Step 6: Final answer
    x = 16,166.13

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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.