Home / 19,921.34-29,872.48-11,603.73

Finding the Fourth Proportional to 19,921.34, 29,872.48 and 11,603.73

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Solution

The fourth proportional to 19,921.34, 29,872.48 and 11,603.73 is: 17,400.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,921.34 : 29,872.48 = 11,603.73 : x
  2. Step 2: Convert to fraction form
    19,921.34/29,872.48 = 11,603.73/x
  3. Step 3: Cross multiply
    19,921.34x = 29,872.48 × 11,603.73
  4. Step 4: Simplify right side
    19,921.34x = 346,632,192.35
  5. Step 5: Solve for x
    x = 346,632,192.35/19,921.34
  6. Step 6: Final answer
    x = 17,400.04

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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.