Home / 20,093.47-27,727.77-11,140.43

Finding the Fourth Proportional to 20,093.47, 27,727.77 and 11,140.43

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Solution

The fourth proportional to 20,093.47, 27,727.77 and 11,140.43 is: 15,373.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,093.47 : 27,727.77 = 11,140.43 : x
  2. Step 2: Convert to fraction form
    20,093.47/27,727.77 = 11,140.43/x
  3. Step 3: Cross multiply
    20,093.47x = 27,727.77 × 11,140.43
  4. Step 4: Simplify right side
    20,093.47x = 308,899,280.74
  5. Step 5: Solve for x
    x = 308,899,280.74/20,093.47
  6. Step 6: Final answer
    x = 15,373.12

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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.