Home / 21,630.36-29,849.96-11,694.36

Finding the Fourth Proportional to 21,630.36, 29,849.96 and 11,694.36

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Solution

The fourth proportional to 21,630.36, 29,849.96 and 11,694.36 is: 16,138.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,630.36 : 29,849.96 = 11,694.36 : x
  2. Step 2: Convert to fraction form
    21,630.36/29,849.96 = 11,694.36/x
  3. Step 3: Cross multiply
    21,630.36x = 29,849.96 × 11,694.36
  4. Step 4: Simplify right side
    21,630.36x = 349,076,178.23
  5. Step 5: Solve for x
    x = 349,076,178.23/21,630.36
  6. Step 6: Final answer
    x = 16,138.25

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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.