Home / 19,821.40-27,307.56-13,843.60

Finding the Fourth Proportional to 19,821.40, 27,307.56 and 13,843.60

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Solution

The fourth proportional to 19,821.40, 27,307.56 and 13,843.60 is: 19,072.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,821.40 : 27,307.56 = 13,843.60 : x
  2. Step 2: Convert to fraction form
    19,821.40/27,307.56 = 13,843.60/x
  3. Step 3: Cross multiply
    19,821.40x = 27,307.56 × 13,843.60
  4. Step 4: Simplify right side
    19,821.40x = 378,034,937.62
  5. Step 5: Solve for x
    x = 378,034,937.62/19,821.40
  6. Step 6: Final answer
    x = 19,072.06

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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.