Home / 20,424.42-28,195.38-13,714.88

Finding the Fourth Proportional to 20,424.42, 28,195.38 and 13,714.88

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Solution

The fourth proportional to 20,424.42, 28,195.38 and 13,714.88 is: 18,933.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,424.42 : 28,195.38 = 13,714.88 : x
  2. Step 2: Convert to fraction form
    20,424.42/28,195.38 = 13,714.88/x
  3. Step 3: Cross multiply
    20,424.42x = 28,195.38 × 13,714.88
  4. Step 4: Simplify right side
    20,424.42x = 386,696,112.28
  5. Step 5: Solve for x
    x = 386,696,112.28/20,424.42
  6. Step 6: Final answer
    x = 18,933.03

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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.