Home / 21,269.97-29,336.07-13,717.53

Finding the Fourth Proportional to 21,269.97, 29,336.07 and 13,717.53

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Solution

The fourth proportional to 21,269.97, 29,336.07 and 13,717.53 is: 18,919.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,269.97 : 29,336.07 = 13,717.53 : x
  2. Step 2: Convert to fraction form
    21,269.97/29,336.07 = 13,717.53/x
  3. Step 3: Cross multiply
    21,269.97x = 29,336.07 × 13,717.53
  4. Step 4: Simplify right side
    21,269.97x = 402,418,420.31
  5. Step 5: Solve for x
    x = 402,418,420.31/21,269.97
  6. Step 6: Final answer
    x = 18,919.56

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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.