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Finding the Fourth Proportional to 21,339.30, 32,014.08 and 8,012.44

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Solution

The fourth proportional to 21,339.30, 32,014.08 and 8,012.44 is: 12,020.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,339.30 : 32,014.08 = 8,012.44 : x
  2. Step 2: Convert to fraction form
    21,339.30/32,014.08 = 8,012.44/x
  3. Step 3: Cross multiply
    21,339.30x = 32,014.08 × 8,012.44
  4. Step 4: Simplify right side
    21,339.30x = 256,510,895.16
  5. Step 5: Solve for x
    x = 256,510,895.16/21,339.30
  6. Step 6: Final answer
    x = 12,020.59

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1.5x scale

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.