Home / 20,049.80-27,679.78-15,012.24

Finding the Fourth Proportional to 20,049.80, 27,679.78 and 15,012.24

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Solution

The fourth proportional to 20,049.80, 27,679.78 and 15,012.24 is: 20,725.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,049.80 : 27,679.78 = 15,012.24 : x
  2. Step 2: Convert to fraction form
    20,049.80/27,679.78 = 15,012.24/x
  3. Step 3: Cross multiply
    20,049.80x = 27,679.78 × 15,012.24
  4. Step 4: Simplify right side
    20,049.80x = 415,535,500.51
  5. Step 5: Solve for x
    x = 415,535,500.51/20,049.80
  6. Step 6: Final answer
    x = 20,725.17

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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.