Home / 28,546.70-39,394.92-15,800.91

Finding the Fourth Proportional to 28,546.70, 39,394.92 and 15,800.91

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Solution

The fourth proportional to 28,546.70, 39,394.92 and 15,800.91 is: 21,805.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,546.70 : 39,394.92 = 15,800.91 : x
  2. Step 2: Convert to fraction form
    28,546.70/39,394.92 = 15,800.91/x
  3. Step 3: Cross multiply
    28,546.70x = 39,394.92 × 15,800.91
  4. Step 4: Simplify right side
    28,546.70x = 622,475,496.90
  5. Step 5: Solve for x
    x = 622,475,496.90/28,546.70
  6. Step 6: Final answer
    x = 21,805.52

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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.