Home / 31,239.12-43,110-17,091.84

Finding the Fourth Proportional to 31,239.12, 43,110 and 17,091.84

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Solution

The fourth proportional to 31,239.12, 43,110 and 17,091.84 is: 23,586.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,239.12 : 43,110 = 17,091.84 : x
  2. Step 2: Convert to fraction form
    31,239.12/43,110 = 17,091.84/x
  3. Step 3: Cross multiply
    31,239.12x = 43,110 × 17,091.84
  4. Step 4: Simplify right side
    31,239.12x = 736,829,222.40
  5. Step 5: Solve for x
    x = 736,829,222.40/31,239.12
  6. Step 6: Final answer
    x = 23,586.75

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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.