Home / 20,200.46-27,875.21-12,646.44

Finding the Fourth Proportional to 20,200.46, 27,875.21 and 12,646.44

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Solution

The fourth proportional to 20,200.46, 27,875.21 and 12,646.44 is: 17,451.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,200.46 : 27,875.21 = 12,646.44 : x
  2. Step 2: Convert to fraction form
    20,200.46/27,875.21 = 12,646.44/x
  3. Step 3: Cross multiply
    20,200.46x = 27,875.21 × 12,646.44
  4. Step 4: Simplify right side
    20,200.46x = 352,522,107.52
  5. Step 5: Solve for x
    x = 352,522,107.52/20,200.46
  6. Step 6: Final answer
    x = 17,451.20

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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.