Home / 21,879.54-30,203.52-17,023.26

Finding the Fourth Proportional to 21,879.54, 30,203.52 and 17,023.26

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Solution

The fourth proportional to 21,879.54, 30,203.52 and 17,023.26 is: 23,499.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,879.54 : 30,203.52 = 17,023.26 : x
  2. Step 2: Convert to fraction form
    21,879.54/30,203.52 = 17,023.26/x
  3. Step 3: Cross multiply
    21,879.54x = 30,203.52 × 17,023.26
  4. Step 4: Simplify right side
    21,879.54x = 514,162,373.88
  5. Step 5: Solve for x
    x = 514,162,373.88/21,879.54
  6. Step 6: Final answer
    x = 23,499.69

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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.