Home / 19,917.42-27,508.79-13,533.34

Finding the Fourth Proportional to 19,917.42, 27,508.79 and 13,533.34

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Solution

The fourth proportional to 19,917.42, 27,508.79 and 13,533.34 is: 18,691.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,917.42 : 27,508.79 = 13,533.34 : x
  2. Step 2: Convert to fraction form
    19,917.42/27,508.79 = 13,533.34/x
  3. Step 3: Cross multiply
    19,917.42x = 27,508.79 × 13,533.34
  4. Step 4: Simplify right side
    19,917.42x = 372,285,869.54
  5. Step 5: Solve for x
    x = 372,285,869.54/19,917.42
  6. Step 6: Final answer
    x = 18,691.47

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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.