Home / 28,442.03-39,249.68-15,695.31

Finding the Fourth Proportional to 28,442.03, 39,249.68 and 15,695.31

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Solution

The fourth proportional to 28,442.03, 39,249.68 and 15,695.31 is: 21,659.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,442.03 : 39,249.68 = 15,695.31 : x
  2. Step 2: Convert to fraction form
    28,442.03/39,249.68 = 15,695.31/x
  3. Step 3: Cross multiply
    28,442.03x = 39,249.68 × 15,695.31
  4. Step 4: Simplify right side
    28,442.03x = 616,035,620.28
  5. Step 5: Solve for x
    x = 616,035,620.28/28,442.03
  6. Step 6: Final answer
    x = 21,659.34

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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.