Home / 28,351.80-39,124.92-17,747.28

Finding the Fourth Proportional to 28,351.80, 39,124.92 and 17,747.28

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Solution

The fourth proportional to 28,351.80, 39,124.92 and 17,747.28 is: 24,490.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,351.80 : 39,124.92 = 17,747.28 : x
  2. Step 2: Convert to fraction form
    28,351.80/39,124.92 = 17,747.28/x
  3. Step 3: Cross multiply
    28,351.80x = 39,124.92 × 17,747.28
  4. Step 4: Simplify right side
    28,351.80x = 694,360,910.22
  5. Step 5: Solve for x
    x = 694,360,910.22/28,351.80
  6. Step 6: Final answer
    x = 24,490.89

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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.