Home / 20,069.51-27,697.14-11,118.20

Finding the Fourth Proportional to 20,069.51, 27,697.14 and 11,118.20

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Solution

The fourth proportional to 20,069.51, 27,697.14 and 11,118.20 is: 15,343.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,069.51 : 27,697.14 = 11,118.20 : x
  2. Step 2: Convert to fraction form
    20,069.51/27,697.14 = 11,118.20/x
  3. Step 3: Cross multiply
    20,069.51x = 27,697.14 × 11,118.20
  4. Step 4: Simplify right side
    20,069.51x = 307,942,203.46
  5. Step 5: Solve for x
    x = 307,942,203.46/20,069.51
  6. Step 6: Final answer
    x = 15,343.79

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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.