Home / 21,629.92-32,288.43-19,005.52

Finding the Fourth Proportional to 21,629.92, 32,288.43 and 19,005.52

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Solution

The fourth proportional to 21,629.92, 32,288.43 and 19,005.52 is: 28,370.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,629.92 : 32,288.43 = 19,005.52 : x
  2. Step 2: Convert to fraction form
    21,629.92/32,288.43 = 19,005.52/x
  3. Step 3: Cross multiply
    21,629.92x = 32,288.43 × 19,005.52
  4. Step 4: Simplify right side
    21,629.92x = 613,658,402.13
  5. Step 5: Solve for x
    x = 613,658,402.13/21,629.92
  6. Step 6: Final answer
    x = 28,370.81

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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.