Home / 20,201.49-27,877.43-11,248.81

Finding the Fourth Proportional to 20,201.49, 27,877.43 and 11,248.81

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Solution

The fourth proportional to 20,201.49, 27,877.43 and 11,248.81 is: 15,523.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,201.49 : 27,877.43 = 11,248.81 : x
  2. Step 2: Convert to fraction form
    20,201.49/27,877.43 = 11,248.81/x
  3. Step 3: Cross multiply
    20,201.49x = 27,877.43 × 11,248.81
  4. Step 4: Simplify right side
    20,201.49x = 313,587,871.79
  5. Step 5: Solve for x
    x = 313,587,871.79/20,201.49
  6. Step 6: Final answer
    x = 15,523.01

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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.