Home / 28,625.54-39,499.48-15,878.57

Finding the Fourth Proportional to 28,625.54, 39,499.48 and 15,878.57

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Solution

The fourth proportional to 28,625.54, 39,499.48 and 15,878.57 is: 21,910.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,625.54 : 39,499.48 = 15,878.57 : x
  2. Step 2: Convert to fraction form
    28,625.54/39,499.48 = 15,878.57/x
  3. Step 3: Cross multiply
    28,625.54x = 39,499.48 × 15,878.57
  4. Step 4: Simplify right side
    28,625.54x = 627,195,258.14
  5. Step 5: Solve for x
    x = 627,195,258.14/28,625.54
  6. Step 6: Final answer
    x = 21,910.34

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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.