Home / 19,830.38-29,736.16-11,512.98

Finding the Fourth Proportional to 19,830.38, 29,736.16 and 11,512.98

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Solution

The fourth proportional to 19,830.38, 29,736.16 and 11,512.98 is: 17,264.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,830.38 : 29,736.16 = 11,512.98 : x
  2. Step 2: Convert to fraction form
    19,830.38/29,736.16 = 11,512.98/x
  3. Step 3: Cross multiply
    19,830.38x = 29,736.16 × 11,512.98
  4. Step 4: Simplify right side
    19,830.38x = 342,351,815.36
  5. Step 5: Solve for x
    x = 342,351,815.36/19,830.38
  6. Step 6: Final answer
    x = 17,264.01

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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.