Home / 20,119.60-27,748.30-15,094.97

Finding the Fourth Proportional to 20,119.60, 27,748.30 and 15,094.97

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Solution

The fourth proportional to 20,119.60, 27,748.30 and 15,094.97 is: 20,818.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,119.60 : 27,748.30 = 15,094.97 : x
  2. Step 2: Convert to fraction form
    20,119.60/27,748.30 = 15,094.97/x
  3. Step 3: Cross multiply
    20,119.60x = 27,748.30 × 15,094.97
  4. Step 4: Simplify right side
    20,119.60x = 418,859,756.05
  5. Step 5: Solve for x
    x = 418,859,756.05/20,119.60
  6. Step 6: Final answer
    x = 20,818.49

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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.