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Finding the Fourth Proportional to 21,467.84, 29,627 and 12,037.84

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Solution

The fourth proportional to 21,467.84, 29,627 and 12,037.84 is: 16,612.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,467.84 : 29,627 = 12,037.84 : x
  2. Step 2: Convert to fraction form
    21,467.84/29,627 = 12,037.84/x
  3. Step 3: Cross multiply
    21,467.84x = 29,627 × 12,037.84
  4. Step 4: Simplify right side
    21,467.84x = 356,645,085.68
  5. Step 5: Solve for x
    x = 356,645,085.68/21,467.84
  6. Step 6: Final answer
    x = 16,612.99

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1.5x scale

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.