Home / 19,741.31-27,242.58-11,127.43

Finding the Fourth Proportional to 19,741.31, 27,242.58 and 11,127.43

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Solution

The fourth proportional to 19,741.31, 27,242.58 and 11,127.43 is: 15,355.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,741.31 : 27,242.58 = 11,127.43 : x
  2. Step 2: Convert to fraction form
    19,741.31/27,242.58 = 11,127.43/x
  3. Step 3: Cross multiply
    19,741.31x = 27,242.58 × 11,127.43
  4. Step 4: Simplify right side
    19,741.31x = 303,139,901.97
  5. Step 5: Solve for x
    x = 303,139,901.97/19,741.31
  6. Step 6: Final answer
    x = 15,355.61

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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.