Home / 21,585.92-32,324.81-13,664.52

Finding the Fourth Proportional to 21,585.92, 32,324.81 and 13,664.52

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Solution

The fourth proportional to 21,585.92, 32,324.81 and 13,664.52 is: 20,462.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,585.92 : 32,324.81 = 13,664.52 : x
  2. Step 2: Convert to fraction form
    21,585.92/32,324.81 = 13,664.52/x
  3. Step 3: Cross multiply
    21,585.92x = 32,324.81 × 13,664.52
  4. Step 4: Simplify right side
    21,585.92x = 441,702,944.42
  5. Step 5: Solve for x
    x = 441,702,944.42/21,585.92
  6. Step 6: Final answer
    x = 20,462.55

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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.