Home / 20,682.27-28,529.55-15,010.47

Finding the Fourth Proportional to 20,682.27, 28,529.55 and 15,010.47

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Solution

The fourth proportional to 20,682.27, 28,529.55 and 15,010.47 is: 20,705.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,682.27 : 28,529.55 = 15,010.47 : x
  2. Step 2: Convert to fraction form
    20,682.27/28,529.55 = 15,010.47/x
  3. Step 3: Cross multiply
    20,682.27x = 28,529.55 × 15,010.47
  4. Step 4: Simplify right side
    20,682.27x = 428,241,954.39
  5. Step 5: Solve for x
    x = 428,241,954.39/20,682.27
  6. Step 6: Final answer
    x = 20,705.75

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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.