Home / 19,824.78-27,358.58-10,871.75

Finding the Fourth Proportional to 19,824.78, 27,358.58 and 10,871.75

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Solution

The fourth proportional to 19,824.78, 27,358.58 and 10,871.75 is: 15,003.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,824.78 : 27,358.58 = 10,871.75 : x
  2. Step 2: Convert to fraction form
    19,824.78/27,358.58 = 10,871.75/x
  3. Step 3: Cross multiply
    19,824.78x = 27,358.58 × 10,871.75
  4. Step 4: Simplify right side
    19,824.78x = 297,435,676.54
  5. Step 5: Solve for x
    x = 297,435,676.54/19,824.78
  6. Step 6: Final answer
    x = 15,003.22

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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.