Home / 20,297.09-28,031.96-13,940.44

Finding the Fourth Proportional to 20,297.09, 28,031.96 and 13,940.44

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Solution

The fourth proportional to 20,297.09, 28,031.96 and 13,940.44 is: 19,252.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,297.09 : 28,031.96 = 13,940.44 : x
  2. Step 2: Convert to fraction form
    20,297.09/28,031.96 = 13,940.44/x
  3. Step 3: Cross multiply
    20,297.09x = 28,031.96 × 13,940.44
  4. Step 4: Simplify right side
    20,297.09x = 390,777,856.46
  5. Step 5: Solve for x
    x = 390,777,856.46/20,297.09
  6. Step 6: Final answer
    x = 19,252.90

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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.