Home / 20,095.61-27,731.81-11,144.43

Finding the Fourth Proportional to 20,095.61, 27,731.81 and 11,144.43

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Solution

The fourth proportional to 20,095.61, 27,731.81 and 11,144.43 is: 15,379.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,095.61 : 27,731.81 = 11,144.43 : x
  2. Step 2: Convert to fraction form
    20,095.61/27,731.81 = 11,144.43/x
  3. Step 3: Cross multiply
    20,095.61x = 27,731.81 × 11,144.43
  4. Step 4: Simplify right side
    20,095.61x = 309,055,159.60
  5. Step 5: Solve for x
    x = 309,055,159.60/20,095.61
  6. Step 6: Final answer
    x = 15,379.24

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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.