Home / 21,410.59-29,546.64-11,979.16

Finding the Fourth Proportional to 21,410.59, 29,546.64 and 11,979.16

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Solution

The fourth proportional to 21,410.59, 29,546.64 and 11,979.16 is: 16,531.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,410.59 : 29,546.64 = 11,979.16 : x
  2. Step 2: Convert to fraction form
    21,410.59/29,546.64 = 11,979.16/x
  3. Step 3: Cross multiply
    21,410.59x = 29,546.64 × 11,979.16
  4. Step 4: Simplify right side
    21,410.59x = 353,943,928.02
  5. Step 5: Solve for x
    x = 353,943,928.02/21,410.59
  6. Step 6: Final answer
    x = 16,531.26

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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.