Home / 21,452.50-29,603.91-11,892.21

Finding the Fourth Proportional to 21,452.50, 29,603.91 and 11,892.21

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Solution

The fourth proportional to 21,452.50, 29,603.91 and 11,892.21 is: 16,410.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,452.50 : 29,603.91 = 11,892.21 : x
  2. Step 2: Convert to fraction form
    21,452.50/29,603.91 = 11,892.21/x
  3. Step 3: Cross multiply
    21,452.50x = 29,603.91 × 11,892.21
  4. Step 4: Simplify right side
    21,452.50x = 352,055,848.12
  5. Step 5: Solve for x
    x = 352,055,848.12/21,452.50
  6. Step 6: Final answer
    x = 16,410.95

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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.