Home / 27,747.56-38,291.64-15,172.31

Finding the Fourth Proportional to 27,747.56, 38,291.64 and 15,172.31

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Solution

The fourth proportional to 27,747.56, 38,291.64 and 15,172.31 is: 20,937.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,747.56 : 38,291.64 = 15,172.31 : x
  2. Step 2: Convert to fraction form
    27,747.56/38,291.64 = 15,172.31/x
  3. Step 3: Cross multiply
    27,747.56x = 38,291.64 × 15,172.31
  4. Step 4: Simplify right side
    27,747.56x = 580,972,671.32
  5. Step 5: Solve for x
    x = 580,972,671.32/27,747.56
  6. Step 6: Final answer
    x = 20,937.79

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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.