Home / 21,354.80-29,468.68-11,923.16

Finding the Fourth Proportional to 21,354.80, 29,468.68 and 11,923.16

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Solution

The fourth proportional to 21,354.80, 29,468.68 and 11,923.16 is: 16,453.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,354.80 : 29,468.68 = 11,923.16 : x
  2. Step 2: Convert to fraction form
    21,354.80/29,468.68 = 11,923.16/x
  3. Step 3: Cross multiply
    21,354.80x = 29,468.68 × 11,923.16
  4. Step 4: Simplify right side
    21,354.80x = 351,359,609.48
  5. Step 5: Solve for x
    x = 351,359,609.48/21,354.80
  6. Step 6: Final answer
    x = 16,453.43

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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.