Home / 17,911.04-26,686.54-16,905

Finding the Fourth Proportional to 17,911.04, 26,686.54 and 16,905

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Solution

The fourth proportional to 17,911.04, 26,686.54 and 16,905 is: 25,187.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,911.04 : 26,686.54 = 16,905 : x
  2. Step 2: Convert to fraction form
    17,911.04/26,686.54 = 16,905/x
  3. Step 3: Cross multiply
    17,911.04x = 26,686.54 × 16,905
  4. Step 4: Simplify right side
    17,911.04x = 451,135,958.70
  5. Step 5: Solve for x
    x = 451,135,958.70/17,911.04
  6. Step 6: Final answer
    x = 25,187.59

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.