Home / 20,160.21-27,818.94-11,206.29

Finding the Fourth Proportional to 20,160.21, 27,818.94 and 11,206.29

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Solution

The fourth proportional to 20,160.21, 27,818.94 and 11,206.29 is: 15,463.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,160.21 : 27,818.94 = 11,206.29 : x
  2. Step 2: Convert to fraction form
    20,160.21/27,818.94 = 11,206.29/x
  3. Step 3: Cross multiply
    20,160.21x = 27,818.94 × 11,206.29
  4. Step 4: Simplify right side
    20,160.21x = 311,747,109.13
  5. Step 5: Solve for x
    x = 311,747,109.13/20,160.21
  6. Step 6: Final answer
    x = 15,463.49

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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.