Home / 23,128.06-31,916.60-12,517.68

Finding the Fourth Proportional to 23,128.06, 31,916.60 and 12,517.68

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Solution

The fourth proportional to 23,128.06, 31,916.60 and 12,517.68 is: 17,274.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,128.06 : 31,916.60 = 12,517.68 : x
  2. Step 2: Convert to fraction form
    23,128.06/31,916.60 = 12,517.68/x
  3. Step 3: Cross multiply
    23,128.06x = 31,916.60 × 12,517.68
  4. Step 4: Simplify right side
    23,128.06x = 399,521,785.49
  5. Step 5: Solve for x
    x = 399,521,785.49/23,128.06
  6. Step 6: Final answer
    x = 17,274.33

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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.