Home / 23,127.67-31,915.54-12,918.43

Finding the Fourth Proportional to 23,127.67, 31,915.54 and 12,918.43

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Solution

The fourth proportional to 23,127.67, 31,915.54 and 12,918.43 is: 17,827.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,127.67 : 31,915.54 = 12,918.43 : x
  2. Step 2: Convert to fraction form
    23,127.67/31,915.54 = 12,918.43/x
  3. Step 3: Cross multiply
    23,127.67x = 31,915.54 × 12,918.43
  4. Step 4: Simplify right side
    23,127.67x = 412,298,557.32
  5. Step 5: Solve for x
    x = 412,298,557.32/23,127.67
  6. Step 6: Final answer
    x = 17,827.07

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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.