Home / 20,156.18-27,817.43-11,206.49

Finding the Fourth Proportional to 20,156.18, 27,817.43 and 11,206.49

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Solution

The fourth proportional to 20,156.18, 27,817.43 and 11,206.49 is: 15,466.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,156.18 : 27,817.43 = 11,206.49 : x
  2. Step 2: Convert to fraction form
    20,156.18/27,817.43 = 11,206.49/x
  3. Step 3: Cross multiply
    20,156.18x = 27,817.43 × 11,206.49
  4. Step 4: Simplify right side
    20,156.18x = 311,735,556.00
  5. Step 5: Solve for x
    x = 311,735,556.00/20,156.18
  6. Step 6: Final answer
    x = 15,466.01

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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.