Home / 20,055.42-27,659.70-15,031.44

Finding the Fourth Proportional to 20,055.42, 27,659.70 and 15,031.44

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Solution

The fourth proportional to 20,055.42, 27,659.70 and 15,031.44 is: 20,730.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,055.42 : 27,659.70 = 15,031.44 : x
  2. Step 2: Convert to fraction form
    20,055.42/27,659.70 = 15,031.44/x
  3. Step 3: Cross multiply
    20,055.42x = 27,659.70 × 15,031.44
  4. Step 4: Simplify right side
    20,055.42x = 415,765,120.97
  5. Step 5: Solve for x
    x = 415,765,120.97/20,055.42
  6. Step 6: Final answer
    x = 20,730.81

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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.