Home / 21,047.78-29,044.71-11,616.32

Finding the Fourth Proportional to 21,047.78, 29,044.71 and 11,616.32

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Solution

The fourth proportional to 21,047.78, 29,044.71 and 11,616.32 is: 16,029.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,047.78 : 29,044.71 = 11,616.32 : x
  2. Step 2: Convert to fraction form
    21,047.78/29,044.71 = 11,616.32/x
  3. Step 3: Cross multiply
    21,047.78x = 29,044.71 × 11,616.32
  4. Step 4: Simplify right side
    21,047.78x = 337,392,645.67
  5. Step 5: Solve for x
    x = 337,392,645.67/21,047.78
  6. Step 6: Final answer
    x = 16,029.84

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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.