Home / 19,933.86-29,862.48-11,142.12

Finding the Fourth Proportional to 19,933.86, 29,862.48 and 11,142.12

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Solution

The fourth proportional to 19,933.86, 29,862.48 and 11,142.12 is: 16,691.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,933.86 : 29,862.48 = 11,142.12 : x
  2. Step 2: Convert to fraction form
    19,933.86/29,862.48 = 11,142.12/x
  3. Step 3: Cross multiply
    19,933.86x = 29,862.48 × 11,142.12
  4. Step 4: Simplify right side
    19,933.86x = 332,731,335.66
  5. Step 5: Solve for x
    x = 332,731,335.66/19,933.86
  6. Step 6: Final answer
    x = 16,691.77

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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.