Home / 21,701.94-29,943.81-13,208.46

Finding the Fourth Proportional to 21,701.94, 29,943.81 and 13,208.46

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Solution

The fourth proportional to 21,701.94, 29,943.81 and 13,208.46 is: 18,224.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,701.94 : 29,943.81 = 13,208.46 : x
  2. Step 2: Convert to fraction form
    21,701.94/29,943.81 = 13,208.46/x
  3. Step 3: Cross multiply
    21,701.94x = 29,943.81 × 13,208.46
  4. Step 4: Simplify right side
    21,701.94x = 395,511,616.63
  5. Step 5: Solve for x
    x = 395,511,616.63/21,701.94
  6. Step 6: Final answer
    x = 18,224.71

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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.