Home / 23,127.24-31,915.25-12,918.41

Finding the Fourth Proportional to 23,127.24, 31,915.25 and 12,918.41

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Solution

The fourth proportional to 23,127.24, 31,915.25 and 12,918.41 is: 17,827.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,127.24 : 31,915.25 = 12,918.41 : x
  2. Step 2: Convert to fraction form
    23,127.24/31,915.25 = 12,918.41/x
  3. Step 3: Cross multiply
    23,127.24x = 31,915.25 × 12,918.41
  4. Step 4: Simplify right side
    23,127.24x = 412,294,358.54
  5. Step 5: Solve for x
    x = 412,294,358.54/23,127.24
  6. Step 6: Final answer
    x = 17,827.22

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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.