Home / 19,987.54-29,992.24-11,223.14

Finding the Fourth Proportional to 19,987.54, 29,992.24 and 11,223.14

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Solution

The fourth proportional to 19,987.54, 29,992.24 and 11,223.14 is: 16,840.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,987.54 : 29,992.24 = 11,223.14 : x
  2. Step 2: Convert to fraction form
    19,987.54/29,992.24 = 11,223.14/x
  3. Step 3: Cross multiply
    19,987.54x = 29,992.24 × 11,223.14
  4. Step 4: Simplify right side
    19,987.54x = 336,607,108.43
  5. Step 5: Solve for x
    x = 336,607,108.43/19,987.54
  6. Step 6: Final answer
    x = 16,840.85

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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.