Home / 21,227.14-29,293.60-13,274.02

Finding the Fourth Proportional to 21,227.14, 29,293.60 and 13,274.02

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Solution

The fourth proportional to 21,227.14, 29,293.60 and 13,274.02 is: 18,318.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,227.14 : 29,293.60 = 13,274.02 : x
  2. Step 2: Convert to fraction form
    21,227.14/29,293.60 = 13,274.02/x
  3. Step 3: Cross multiply
    21,227.14x = 29,293.60 × 13,274.02
  4. Step 4: Simplify right side
    21,227.14x = 388,843,832.27
  5. Step 5: Solve for x
    x = 388,843,832.27/21,227.14
  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.