Home / 31,553.13-43,521.63-18,796.49

Finding the Fourth Proportional to 31,553.13, 43,521.63 and 18,796.49

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Solution

The fourth proportional to 31,553.13, 43,521.63 and 18,796.49 is: 25,926.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,553.13 : 43,521.63 = 18,796.49 : x
  2. Step 2: Convert to fraction form
    31,553.13/43,521.63 = 18,796.49/x
  3. Step 3: Cross multiply
    31,553.13x = 43,521.63 × 18,796.49
  4. Step 4: Simplify right side
    31,553.13x = 818,053,665.47
  5. Step 5: Solve for x
    x = 818,053,665.47/31,553.13
  6. Step 6: Final answer
    x = 25,926.23

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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.