Home / 21,085.63-29,098.77-11,654.80

Finding the Fourth Proportional to 21,085.63, 29,098.77 and 11,654.80

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Solution

The fourth proportional to 21,085.63, 29,098.77 and 11,654.80 is: 16,083.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,085.63 : 29,098.77 = 11,654.80 : x
  2. Step 2: Convert to fraction form
    21,085.63/29,098.77 = 11,654.80/x
  3. Step 3: Cross multiply
    21,085.63x = 29,098.77 × 11,654.80
  4. Step 4: Simplify right side
    21,085.63x = 339,140,344.60
  5. Step 5: Solve for x
    x = 339,140,344.60/21,085.63
  6. Step 6: Final answer
    x = 16,083.96

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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.