Home / 20,065.76-27,692.31-11,114.11

Finding the Fourth Proportional to 20,065.76, 27,692.31 and 11,114.11

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Solution

The fourth proportional to 20,065.76, 27,692.31 and 11,114.11 is: 15,338.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,065.76 : 27,692.31 = 11,114.11 : x
  2. Step 2: Convert to fraction form
    20,065.76/27,692.31 = 11,114.11/x
  3. Step 3: Cross multiply
    20,065.76x = 27,692.31 × 11,114.11
  4. Step 4: Simplify right side
    20,065.76x = 307,775,455.79
  5. Step 5: Solve for x
    x = 307,775,455.79/20,065.76
  6. Step 6: Final answer
    x = 15,338.34

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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.