Home / 31,297.23-43,190.17-18,721.98

Finding the Fourth Proportional to 31,297.23, 43,190.17 and 18,721.98

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Solution

The fourth proportional to 31,297.23, 43,190.17 and 18,721.98 is: 25,836.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,297.23 : 43,190.17 = 18,721.98 : x
  2. Step 2: Convert to fraction form
    31,297.23/43,190.17 = 18,721.98/x
  3. Step 3: Cross multiply
    31,297.23x = 43,190.17 × 18,721.98
  4. Step 4: Simplify right side
    31,297.23x = 808,605,498.94
  5. Step 5: Solve for x
    x = 808,605,498.94/31,297.23
  6. Step 6: Final answer
    x = 25,836.33

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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.