Home / 20,179.74-27,790.20-20,114.04

Finding the Fourth Proportional to 20,179.74, 27,790.20 and 20,114.04

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Solution

The fourth proportional to 20,179.74, 27,790.20 and 20,114.04 is: 27,699.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,179.74 : 27,790.20 = 20,114.04 : x
  2. Step 2: Convert to fraction form
    20,179.74/27,790.20 = 20,114.04/x
  3. Step 3: Cross multiply
    20,179.74x = 27,790.20 × 20,114.04
  4. Step 4: Simplify right side
    20,179.74x = 558,973,194.41
  5. Step 5: Solve for x
    x = 558,973,194.41/20,179.74
  6. Step 6: Final answer
    x = 27,699.72

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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.