Home / 20,879.25-31,345.59-17,936.52

Finding the Fourth Proportional to 20,879.25, 31,345.59 and 17,936.52

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Solution

The fourth proportional to 20,879.25, 31,345.59 and 17,936.52 is: 26,927.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,879.25 : 31,345.59 = 17,936.52 : x
  2. Step 2: Convert to fraction form
    20,879.25/31,345.59 = 17,936.52/x
  3. Step 3: Cross multiply
    20,879.25x = 31,345.59 × 17,936.52
  4. Step 4: Simplify right side
    20,879.25x = 562,230,801.95
  5. Step 5: Solve for x
    x = 562,230,801.95/20,879.25
  6. Step 6: Final answer
    x = 26,927.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.