Home / 21,565.92-32,366.20-11,180.64

Finding the Fourth Proportional to 21,565.92, 32,366.20 and 11,180.64

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Solution

The fourth proportional to 21,565.92, 32,366.20 and 11,180.64 is: 16,779.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,565.92 : 32,366.20 = 11,180.64 : x
  2. Step 2: Convert to fraction form
    21,565.92/32,366.20 = 11,180.64/x
  3. Step 3: Cross multiply
    21,565.92x = 32,366.20 × 11,180.64
  4. Step 4: Simplify right side
    21,565.92x = 361,874,830.37
  5. Step 5: Solve for x
    x = 361,874,830.37/21,565.92
  6. Step 6: Final answer
    x = 16,779.94

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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.