Home / 28,667.12-39,564.36-16,091.88

Finding the Fourth Proportional to 28,667.12, 39,564.36 and 16,091.88

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Solution

The fourth proportional to 28,667.12, 39,564.36 and 16,091.88 is: 22,208.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,667.12 : 39,564.36 = 16,091.88 : x
  2. Step 2: Convert to fraction form
    28,667.12/39,564.36 = 16,091.88/x
  3. Step 3: Cross multiply
    28,667.12x = 39,564.36 × 16,091.88
  4. Step 4: Simplify right side
    28,667.12x = 636,664,933.40
  5. Step 5: Solve for x
    x = 636,664,933.40/28,667.12
  6. Step 6: Final answer
    x = 22,208.89

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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.