Home / 23,127-31,915.26-13,191

Finding the Fourth Proportional to 23,127, 31,915.26 and 13,191

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Solution

The fourth proportional to 23,127, 31,915.26 and 13,191 is: 18,203.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,127 : 31,915.26 = 13,191 : x
  2. Step 2: Convert to fraction form
    23,127/31,915.26 = 13,191/x
  3. Step 3: Cross multiply
    23,127x = 31,915.26 × 13,191
  4. Step 4: Simplify right side
    23,127x = 420,994,194.66
  5. Step 5: Solve for x
    x = 420,994,194.66/23,127
  6. Step 6: Final answer
    x = 18,203.58

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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.