Home / 28,620.59-39,496.74-15,874.03

Finding the Fourth Proportional to 28,620.59, 39,496.74 and 15,874.03

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Solution

The fourth proportional to 28,620.59, 39,496.74 and 15,874.03 is: 21,906.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,620.59 : 39,496.74 = 15,874.03 : x
  2. Step 2: Convert to fraction form
    28,620.59/39,496.74 = 15,874.03/x
  3. Step 3: Cross multiply
    28,620.59x = 39,496.74 × 15,874.03
  4. Step 4: Simplify right side
    28,620.59x = 626,972,238.18
  5. Step 5: Solve for x
    x = 626,972,238.18/28,620.59
  6. Step 6: Final answer
    x = 21,906.34

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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.