Home / 25,636.21-35,393.99-19,656.38

Finding the Fourth Proportional to 25,636.21, 35,393.99 and 19,656.38

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Solution

The fourth proportional to 25,636.21, 35,393.99 and 19,656.38 is: 27,138.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,636.21 : 35,393.99 = 19,656.38 : x
  2. Step 2: Convert to fraction form
    25,636.21/35,393.99 = 19,656.38/x
  3. Step 3: Cross multiply
    25,636.21x = 35,393.99 × 19,656.38
  4. Step 4: Simplify right side
    25,636.21x = 695,717,717.16
  5. Step 5: Solve for x
    x = 695,717,717.16/25,636.21
  6. Step 6: Final answer
    x = 27,138.09

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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.