Home / 21,410.57-29,546.67-11,979.14

Finding the Fourth Proportional to 21,410.57, 29,546.67 and 11,979.14

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Solution

The fourth proportional to 21,410.57, 29,546.67 and 11,979.14 is: 16,531.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,410.57 : 29,546.67 = 11,979.14 : x
  2. Step 2: Convert to fraction form
    21,410.57/29,546.67 = 11,979.14/x
  3. Step 3: Cross multiply
    21,410.57x = 29,546.67 × 11,979.14
  4. Step 4: Simplify right side
    21,410.57x = 353,943,696.46
  5. Step 5: Solve for x
    x = 353,943,696.46/21,410.57
  6. Step 6: Final answer
    x = 16,531.26

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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.