Home / 20,029.30-27,639.60-10,954.52

Finding the Fourth Proportional to 20,029.30, 27,639.60 and 10,954.52

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Solution

The fourth proportional to 20,029.30, 27,639.60 and 10,954.52 is: 15,116.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,029.30 : 27,639.60 = 10,954.52 : x
  2. Step 2: Convert to fraction form
    20,029.30/27,639.60 = 10,954.52/x
  3. Step 3: Cross multiply
    20,029.30x = 27,639.60 × 10,954.52
  4. Step 4: Simplify right side
    20,029.30x = 302,778,536.98
  5. Step 5: Solve for x
    x = 302,778,536.98/20,029.30
  6. Step 6: Final answer
    x = 15,116.78

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.