Home / 21,514.36-32,202.10-11,111.80

Finding the Fourth Proportional to 21,514.36, 32,202.10 and 11,111.80

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Solution

The fourth proportional to 21,514.36, 32,202.10 and 11,111.80 is: 16,631.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,514.36 : 32,202.10 = 11,111.80 : x
  2. Step 2: Convert to fraction form
    21,514.36/32,202.10 = 11,111.80/x
  3. Step 3: Cross multiply
    21,514.36x = 32,202.10 × 11,111.80
  4. Step 4: Simplify right side
    21,514.36x = 357,823,294.78
  5. Step 5: Solve for x
    x = 357,823,294.78/21,514.36
  6. Step 6: Final answer
    x = 16,631.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.