Home / 21,092.04-29,104.83-12,137.79

Finding the Fourth Proportional to 21,092.04, 29,104.83 and 12,137.79

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Solution

The fourth proportional to 21,092.04, 29,104.83 and 12,137.79 is: 16,748.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,092.04 : 29,104.83 = 12,137.79 : x
  2. Step 2: Convert to fraction form
    21,092.04/29,104.83 = 12,137.79/x
  3. Step 3: Cross multiply
    21,092.04x = 29,104.83 × 12,137.79
  4. Step 4: Simplify right side
    21,092.04x = 353,268,314.53
  5. Step 5: Solve for x
    x = 353,268,314.53/21,092.04
  6. Step 6: Final answer
    x = 16,748.89

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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.