Home / 23,128.36-31,917.13-12,517.99

Finding the Fourth Proportional to 23,128.36, 31,917.13 and 12,517.99

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Solution

The fourth proportional to 23,128.36, 31,917.13 and 12,517.99 is: 17,274.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,128.36 : 31,917.13 = 12,517.99 : x
  2. Step 2: Convert to fraction form
    23,128.36/31,917.13 = 12,517.99/x
  3. Step 3: Cross multiply
    23,128.36x = 31,917.13 × 12,517.99
  4. Step 4: Simplify right side
    23,128.36x = 399,538,314.17
  5. Step 5: Solve for x
    x = 399,538,314.17/23,128.36
  6. Step 6: Final answer
    x = 17,274.82

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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.