Home / 21,369.25-29,493.21-11,935.99

Finding the Fourth Proportional to 21,369.25, 29,493.21 and 11,935.99

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Solution

The fourth proportional to 21,369.25, 29,493.21 and 11,935.99 is: 16,473.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,369.25 : 29,493.21 = 11,935.99 : x
  2. Step 2: Convert to fraction form
    21,369.25/29,493.21 = 11,935.99/x
  3. Step 3: Cross multiply
    21,369.25x = 29,493.21 × 11,935.99
  4. Step 4: Simplify right side
    21,369.25x = 352,030,659.63
  5. Step 5: Solve for x
    x = 352,030,659.63/21,369.25
  6. Step 6: Final answer
    x = 16,473.70

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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.