Home / 20,095.56-27,732.77-11,142.50

Finding the Fourth Proportional to 20,095.56, 27,732.77 and 11,142.50

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Solution

The fourth proportional to 20,095.56, 27,732.77 and 11,142.50 is: 15,377.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,095.56 : 27,732.77 = 11,142.50 : x
  2. Step 2: Convert to fraction form
    20,095.56/27,732.77 = 11,142.50/x
  3. Step 3: Cross multiply
    20,095.56x = 27,732.77 × 11,142.50
  4. Step 4: Simplify right side
    20,095.56x = 309,012,195.35
  5. Step 5: Solve for x
    x = 309,012,195.35/20,095.56
  6. Step 6: Final answer
    x = 15,377.14

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1.5x scale

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.