Home / 21,274.39-29,354.43-11,841.13

Finding the Fourth Proportional to 21,274.39, 29,354.43 and 11,841.13

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Solution

The fourth proportional to 21,274.39, 29,354.43 and 11,841.13 is: 16,338.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,274.39 : 29,354.43 = 11,841.13 : x
  2. Step 2: Convert to fraction form
    21,274.39/29,354.43 = 11,841.13/x
  3. Step 3: Cross multiply
    21,274.39x = 29,354.43 × 11,841.13
  4. Step 4: Simplify right side
    21,274.39x = 347,589,621.71
  5. Step 5: Solve for x
    x = 347,589,621.71/21,274.39
  6. Step 6: Final answer
    x = 16,338.41

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Double scale
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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.