Home / 23,119.57-31,893.64-13,683.61

Finding the Fourth Proportional to 23,119.57, 31,893.64 and 13,683.61

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Solution

The fourth proportional to 23,119.57, 31,893.64 and 13,683.61 is: 18,876.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,119.57 : 31,893.64 = 13,683.61 : x
  2. Step 2: Convert to fraction form
    23,119.57/31,893.64 = 13,683.61/x
  3. Step 3: Cross multiply
    23,119.57x = 31,893.64 × 13,683.61
  4. Step 4: Simplify right side
    23,119.57x = 436,420,131.24
  5. Step 5: Solve for x
    x = 436,420,131.24/23,119.57
  6. Step 6: Final answer
    x = 18,876.65

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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.