Home / 21,670.92-32,514.21-8,515.98

Finding the Fourth Proportional to 21,670.92, 32,514.21 and 8,515.98

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Solution

The fourth proportional to 21,670.92, 32,514.21 and 8,515.98 is: 12,777.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,670.92 : 32,514.21 = 8,515.98 : x
  2. Step 2: Convert to fraction form
    21,670.92/32,514.21 = 8,515.98/x
  3. Step 3: Cross multiply
    21,670.92x = 32,514.21 × 8,515.98
  4. Step 4: Simplify right side
    21,670.92x = 276,890,362.08
  5. Step 5: Solve for x
    x = 276,890,362.08/21,670.92
  6. Step 6: Final answer
    x = 12,777.05

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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.