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Finding the Fourth Proportional to 21,393, 32,093.64 and 8,244.48

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Solution

The fourth proportional to 21,393, 32,093.64 and 8,244.48 is: 12,368.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,393 : 32,093.64 = 8,244.48 : x
  2. Step 2: Convert to fraction form
    21,393/32,093.64 = 8,244.48/x
  3. Step 3: Cross multiply
    21,393x = 32,093.64 × 8,244.48
  4. Step 4: Simplify right side
    21,393x = 264,595,373.11
  5. Step 5: Solve for x
    x = 264,595,373.11/21,393
  6. Step 6: Final answer
    x = 12,368.32

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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.