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Finding the Fourth Proportional to 21,734.08, 29,992.80 and 11,798.08

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Solution

The fourth proportional to 21,734.08, 29,992.80 and 11,798.08 is: 16,281.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,734.08 : 29,992.80 = 11,798.08 : x
  2. Step 2: Convert to fraction form
    21,734.08/29,992.80 = 11,798.08/x
  3. Step 3: Cross multiply
    21,734.08x = 29,992.80 × 11,798.08
  4. Step 4: Simplify right side
    21,734.08x = 353,857,453.82
  5. Step 5: Solve for x
    x = 353,857,453.82/21,734.08
  6. Step 6: Final answer
    x = 16,281.23

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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.