Home / 23,142.49-31,936.41-13,582.47

Finding the Fourth Proportional to 23,142.49, 31,936.41 and 13,582.47

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Solution

The fourth proportional to 23,142.49, 31,936.41 and 13,582.47 is: 18,743.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,142.49 : 31,936.41 = 13,582.47 : x
  2. Step 2: Convert to fraction form
    23,142.49/31,936.41 = 13,582.47/x
  3. Step 3: Cross multiply
    23,142.49x = 31,936.41 × 13,582.47
  4. Step 4: Simplify right side
    23,142.49x = 433,775,330.73
  5. Step 5: Solve for x
    x = 433,775,330.73/23,142.49
  6. Step 6: Final answer
    x = 18,743.68

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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.