Home / 20,071.08-27,691.32-16,090.80

Finding the Fourth Proportional to 20,071.08, 27,691.32 and 16,090.80

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Solution

The fourth proportional to 20,071.08, 27,691.32 and 16,090.80 is: 22,199.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,071.08 : 27,691.32 = 16,090.80 : x
  2. Step 2: Convert to fraction form
    20,071.08/27,691.32 = 16,090.80/x
  3. Step 3: Cross multiply
    20,071.08x = 27,691.32 × 16,090.80
  4. Step 4: Simplify right side
    20,071.08x = 445,575,491.86
  5. Step 5: Solve for x
    x = 445,575,491.86/20,071.08
  6. Step 6: Final answer
    x = 22,199.88

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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.