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Finding the Fourth Proportional to 21,331.99, 32,004.92 and 13,950.91

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Solution

The fourth proportional to 21,331.99, 32,004.92 and 13,950.91 is: 20,930.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,331.99 : 32,004.92 = 13,950.91 : x
  2. Step 2: Convert to fraction form
    21,331.99/32,004.92 = 13,950.91/x
  3. Step 3: Cross multiply
    21,331.99x = 32,004.92 × 13,950.91
  4. Step 4: Simplify right side
    21,331.99x = 446,497,758.48
  5. Step 5: Solve for x
    x = 446,497,758.48/21,331.99
  6. Step 6: Final answer
    x = 20,930.90

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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.