Home / 22,704.35-31,331.51-13,144.64

Finding the Fourth Proportional to 22,704.35, 31,331.51 and 13,144.64

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Solution

The fourth proportional to 22,704.35, 31,331.51 and 13,144.64 is: 18,139.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,704.35 : 31,331.51 = 13,144.64 : x
  2. Step 2: Convert to fraction form
    22,704.35/31,331.51 = 13,144.64/x
  3. Step 3: Cross multiply
    22,704.35x = 31,331.51 × 13,144.64
  4. Step 4: Simplify right side
    22,704.35x = 411,841,419.61
  5. Step 5: Solve for x
    x = 411,841,419.61/22,704.35
  6. Step 6: Final answer
    x = 18,139.32

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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.