Home / 21,618.54-32,212.91-19,260.43

Finding the Fourth Proportional to 21,618.54, 32,212.91 and 19,260.43

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Solution

The fourth proportional to 21,618.54, 32,212.91 and 19,260.43 is: 28,699.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,618.54 : 32,212.91 = 19,260.43 : x
  2. Step 2: Convert to fraction form
    21,618.54/32,212.91 = 19,260.43/x
  3. Step 3: Cross multiply
    21,618.54x = 32,212.91 × 19,260.43
  4. Step 4: Simplify right side
    21,618.54x = 620,434,498.15
  5. Step 5: Solve for x
    x = 620,434,498.15/21,618.54
  6. Step 6: Final answer
    x = 28,699.19

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.