Home / 25,635.21-35,392.61-19,655.38

Finding the Fourth Proportional to 25,635.21, 35,392.61 and 19,655.38

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Solution

The fourth proportional to 25,635.21, 35,392.61 and 19,655.38 is: 27,136.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,635.21 : 35,392.61 = 19,655.38 : x
  2. Step 2: Convert to fraction form
    25,635.21/35,392.61 = 19,655.38/x
  3. Step 3: Cross multiply
    25,635.21x = 35,392.61 × 19,655.38
  4. Step 4: Simplify right side
    25,635.21x = 695,655,198.74
  5. Step 5: Solve for x
    x = 695,655,198.74/25,635.21
  6. Step 6: Final answer
    x = 27,136.71

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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.