Home / 38,620.82-53,296.32-21,625.22

Finding the Fourth Proportional to 38,620.82, 53,296.32 and 21,625.22

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Solution

The fourth proportional to 38,620.82, 53,296.32 and 21,625.22 is: 29,842.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,620.82 : 53,296.32 = 21,625.22 : x
  2. Step 2: Convert to fraction form
    38,620.82/53,296.32 = 21,625.22/x
  3. Step 3: Cross multiply
    38,620.82x = 53,296.32 × 21,625.22
  4. Step 4: Simplify right side
    38,620.82x = 1,152,544,645.19
  5. Step 5: Solve for x
    x = 1,152,544,645.19/38,620.82
  6. Step 6: Final answer
    x = 29,842.57

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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.