Home / 31,680.34-43,723.50-18,249.01

Finding the Fourth Proportional to 31,680.34, 43,723.50 and 18,249.01

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Solution

The fourth proportional to 31,680.34, 43,723.50 and 18,249.01 is: 25,186.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,680.34 : 43,723.50 = 18,249.01 : x
  2. Step 2: Convert to fraction form
    31,680.34/43,723.50 = 18,249.01/x
  3. Step 3: Cross multiply
    31,680.34x = 43,723.50 × 18,249.01
  4. Step 4: Simplify right side
    31,680.34x = 797,910,588.74
  5. Step 5: Solve for x
    x = 797,910,588.74/31,680.34
  6. Step 6: Final answer
    x = 25,186.30

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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.