Home / 18,179.10-27,270-13,258.35

Finding the Fourth Proportional to 18,179.10, 27,270 and 13,258.35

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Solution

The fourth proportional to 18,179.10, 27,270 and 13,258.35 is: 19,888.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,179.10 : 27,270 = 13,258.35 : x
  2. Step 2: Convert to fraction form
    18,179.10/27,270 = 13,258.35/x
  3. Step 3: Cross multiply
    18,179.10x = 27,270 × 13,258.35
  4. Step 4: Simplify right side
    18,179.10x = 361,555,204.50
  5. Step 5: Solve for x
    x = 361,555,204.50/18,179.10
  6. Step 6: Final answer
    x = 19,888.51

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.