Home / 21,584.16-32,392.80-8,439.84

Finding the Fourth Proportional to 21,584.16, 32,392.80 and 8,439.84

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Solution

The fourth proportional to 21,584.16, 32,392.80 and 8,439.84 is: 12,666.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,584.16 : 32,392.80 = 8,439.84 : x
  2. Step 2: Convert to fraction form
    21,584.16/32,392.80 = 8,439.84/x
  3. Step 3: Cross multiply
    21,584.16x = 32,392.80 × 8,439.84
  4. Step 4: Simplify right side
    21,584.16x = 273,390,049.15
  5. Step 5: Solve for x
    x = 273,390,049.15/21,584.16
  6. Step 6: Final answer
    x = 12,666.24

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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.