Home / 23,138.85-34,722.17-9,991.23

Finding the Fourth Proportional to 23,138.85, 34,722.17 and 9,991.23

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Solution

The fourth proportional to 23,138.85, 34,722.17 and 9,991.23 is: 14,992.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,138.85 : 34,722.17 = 9,991.23 : x
  2. Step 2: Convert to fraction form
    23,138.85/34,722.17 = 9,991.23/x
  3. Step 3: Cross multiply
    23,138.85x = 34,722.17 × 9,991.23
  4. Step 4: Simplify right side
    23,138.85x = 346,917,186.57
  5. Step 5: Solve for x
    x = 346,917,186.57/23,138.85
  6. Step 6: Final answer
    x = 14,992.84

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1.5x scale

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.