Home / 20,192.04-27,867.78-12,761.64

Finding the Fourth Proportional to 20,192.04, 27,867.78 and 12,761.64

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Solution

The fourth proportional to 20,192.04, 27,867.78 and 12,761.64 is: 17,612.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,192.04 : 27,867.78 = 12,761.64 : x
  2. Step 2: Convert to fraction form
    20,192.04/27,867.78 = 12,761.64/x
  3. Step 3: Cross multiply
    20,192.04x = 27,867.78 × 12,761.64
  4. Step 4: Simplify right side
    20,192.04x = 355,638,575.96
  5. Step 5: Solve for x
    x = 355,638,575.96/20,192.04
  6. Step 6: Final answer
    x = 17,612.81

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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.