Home / 31,221.89-43,091.31-23,208.77

Finding the Fourth Proportional to 31,221.89, 43,091.31 and 23,208.77

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Solution

The fourth proportional to 31,221.89, 43,091.31 and 23,208.77 is: 32,031.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,221.89 : 43,091.31 = 23,208.77 : x
  2. Step 2: Convert to fraction form
    31,221.89/43,091.31 = 23,208.77/x
  3. Step 3: Cross multiply
    31,221.89x = 43,091.31 × 23,208.77
  4. Step 4: Simplify right side
    31,221.89x = 1,000,096,087.33
  5. Step 5: Solve for x
    x = 1,000,096,087.33/31,221.89
  6. Step 6: Final answer
    x = 32,031.89

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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.