Home / 28,250-38,984.97-15,503.26

Finding the Fourth Proportional to 28,250, 38,984.97 and 15,503.26

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Solution

The fourth proportional to 28,250, 38,984.97 and 15,503.26 is: 21,394.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,250 : 38,984.97 = 15,503.26 : x
  2. Step 2: Convert to fraction form
    28,250/38,984.97 = 15,503.26/x
  3. Step 3: Cross multiply
    28,250x = 38,984.97 × 15,503.26
  4. Step 4: Simplify right side
    28,250x = 604,394,126.00
  5. Step 5: Solve for x
    x = 604,394,126.00/28,250
  6. Step 6: Final answer
    x = 21,394.48

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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.