Home / 21,093.48-29,108.88-11,662.20

Finding the Fourth Proportional to 21,093.48, 29,108.88 and 11,662.20

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Solution

The fourth proportional to 21,093.48, 29,108.88 and 11,662.20 is: 16,093.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,093.48 : 29,108.88 = 11,662.20 : x
  2. Step 2: Convert to fraction form
    21,093.48/29,108.88 = 11,662.20/x
  3. Step 3: Cross multiply
    21,093.48x = 29,108.88 × 11,662.20
  4. Step 4: Simplify right side
    21,093.48x = 339,473,580.34
  5. Step 5: Solve for x
    x = 339,473,580.34/21,093.48
  6. Step 6: Final answer
    x = 16,093.77

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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.