Home / 21,678.08-32,504.81-8,523.27

Finding the Fourth Proportional to 21,678.08, 32,504.81 and 8,523.27

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Solution

The fourth proportional to 21,678.08, 32,504.81 and 8,523.27 is: 12,780.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,678.08 : 32,504.81 = 8,523.27 : x
  2. Step 2: Convert to fraction form
    21,678.08/32,504.81 = 8,523.27/x
  3. Step 3: Cross multiply
    21,678.08x = 32,504.81 × 8,523.27
  4. Step 4: Simplify right side
    21,678.08x = 277,047,229.31
  5. Step 5: Solve for x
    x = 277,047,229.31/21,678.08
  6. Step 6: Final answer
    x = 12,780.07

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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.