Home / 21,227.15-29,293.59-13,274.03

Finding the Fourth Proportional to 21,227.15, 29,293.59 and 13,274.03

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Solution

The fourth proportional to 21,227.15, 29,293.59 and 13,274.03 is: 18,318.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,227.15 : 29,293.59 = 13,274.03 : x
  2. Step 2: Convert to fraction form
    21,227.15/29,293.59 = 13,274.03/x
  3. Step 3: Cross multiply
    21,227.15x = 29,293.59 × 13,274.03
  4. Step 4: Simplify right side
    21,227.15x = 388,843,846.00
  5. Step 5: Solve for x
    x = 388,843,846.00/21,227.15
  6. Step 6: Final answer
    x = 18,318.24

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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.