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Finding the Fourth Proportional to 21,444.56, 29,592 and 12,012.92

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Solution

The fourth proportional to 21,444.56, 29,592 and 12,012.92 is: 16,576.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,444.56 : 29,592 = 12,012.92 : x
  2. Step 2: Convert to fraction form
    21,444.56/29,592 = 12,012.92/x
  3. Step 3: Cross multiply
    21,444.56x = 29,592 × 12,012.92
  4. Step 4: Simplify right side
    21,444.56x = 355,486,328.64
  5. Step 5: Solve for x
    x = 355,486,328.64/21,444.56
  6. Step 6: Final answer
    x = 16,576.99

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.