Home / 20,148.55-27,797.04-11,649.12

Finding the Fourth Proportional to 20,148.55, 27,797.04 and 11,649.12

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Solution

The fourth proportional to 20,148.55, 27,797.04 and 11,649.12 is: 16,071.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,148.55 : 27,797.04 = 11,649.12 : x
  2. Step 2: Convert to fraction form
    20,148.55/27,797.04 = 11,649.12/x
  3. Step 3: Cross multiply
    20,148.55x = 27,797.04 × 11,649.12
  4. Step 4: Simplify right side
    20,148.55x = 323,810,915.62
  5. Step 5: Solve for x
    x = 323,810,915.62/20,148.55
  6. Step 6: Final answer
    x = 16,071.18

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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.