Home / 23,127.38-31,915.79-12,517.01

Finding the Fourth Proportional to 23,127.38, 31,915.79 and 12,517.01

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Solution

The fourth proportional to 23,127.38, 31,915.79 and 12,517.01 is: 17,273.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,127.38 : 31,915.79 = 12,517.01 : x
  2. Step 2: Convert to fraction form
    23,127.38/31,915.79 = 12,517.01/x
  3. Step 3: Cross multiply
    23,127.38x = 31,915.79 × 12,517.01
  4. Step 4: Simplify right side
    23,127.38x = 399,490,040.42
  5. Step 5: Solve for x
    x = 399,490,040.42/23,127.38
  6. Step 6: Final answer
    x = 17,273.47

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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.