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Finding the Fourth Proportional to 21,616.08, 29,835.84 and 14,083.08

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Solution

The fourth proportional to 21,616.08, 29,835.84 and 14,083.08 is: 19,438.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,616.08 : 29,835.84 = 14,083.08 : x
  2. Step 2: Convert to fraction form
    21,616.08/29,835.84 = 14,083.08/x
  3. Step 3: Cross multiply
    21,616.08x = 29,835.84 × 14,083.08
  4. Step 4: Simplify right side
    21,616.08x = 420,180,521.59
  5. Step 5: Solve for x
    x = 420,180,521.59/21,616.08
  6. Step 6: Final answer
    x = 19,438.33

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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.