Home / 20,179.60-27,848.46-11,228.20

Finding the Fourth Proportional to 20,179.60, 27,848.46 and 11,228.20

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Solution

The fourth proportional to 20,179.60, 27,848.46 and 11,228.20 is: 15,495.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,179.60 : 27,848.46 = 11,228.20 : x
  2. Step 2: Convert to fraction form
    20,179.60/27,848.46 = 11,228.20/x
  3. Step 3: Cross multiply
    20,179.60x = 27,848.46 × 11,228.20
  4. Step 4: Simplify right side
    20,179.60x = 312,688,078.57
  5. Step 5: Solve for x
    x = 312,688,078.57/20,179.60
  6. Step 6: Final answer
    x = 15,495.26

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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.