Home / 22,982.49-31,721.63-13,554.09

Finding the Fourth Proportional to 22,982.49, 31,721.63 and 13,554.09

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Solution

The fourth proportional to 22,982.49, 31,721.63 and 13,554.09 is: 18,708.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,982.49 : 31,721.63 = 13,554.09 : x
  2. Step 2: Convert to fraction form
    22,982.49/31,721.63 = 13,554.09/x
  3. Step 3: Cross multiply
    22,982.49x = 31,721.63 × 13,554.09
  4. Step 4: Simplify right side
    22,982.49x = 429,957,760.20
  5. Step 5: Solve for x
    x = 429,957,760.20/22,982.49
  6. Step 6: Final answer
    x = 18,708.06

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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.