Home / 28,590.37-42,785.75-21,824.33

Finding the Fourth Proportional to 28,590.37, 42,785.75 and 21,824.33

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Solution

The fourth proportional to 28,590.37, 42,785.75 and 21,824.33 is: 32,660.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,590.37 : 42,785.75 = 21,824.33 : x
  2. Step 2: Convert to fraction form
    28,590.37/42,785.75 = 21,824.33/x
  3. Step 3: Cross multiply
    28,590.37x = 42,785.75 × 21,824.33
  4. Step 4: Simplify right side
    28,590.37x = 933,770,167.93
  5. Step 5: Solve for x
    x = 933,770,167.93/28,590.37
  6. Step 6: Final answer
    x = 32,660.31

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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.