Home / 27,795.60-38,318.40-17,179.20

Finding the Fourth Proportional to 27,795.60, 38,318.40 and 17,179.20

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Solution

The fourth proportional to 27,795.60, 38,318.40 and 17,179.20 is: 23,682.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,795.60 : 38,318.40 = 17,179.20 : x
  2. Step 2: Convert to fraction form
    27,795.60/38,318.40 = 17,179.20/x
  3. Step 3: Cross multiply
    27,795.60x = 38,318.40 × 17,179.20
  4. Step 4: Simplify right side
    27,795.60x = 658,279,457.28
  5. Step 5: Solve for x
    x = 658,279,457.28/27,795.60
  6. Step 6: Final answer
    x = 23,682.87

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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.