Home / 25,825.87-35,651.51-19,855.45

Finding the Fourth Proportional to 25,825.87, 35,651.51 and 19,855.45

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Solution

The fourth proportional to 25,825.87, 35,651.51 and 19,855.45 is: 27,409.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,825.87 : 35,651.51 = 19,855.45 : x
  2. Step 2: Convert to fraction form
    25,825.87/35,651.51 = 19,855.45/x
  3. Step 3: Cross multiply
    25,825.87x = 35,651.51 × 19,855.45
  4. Step 4: Simplify right side
    25,825.87x = 707,876,774.23
  5. Step 5: Solve for x
    x = 707,876,774.23/25,825.87
  6. Step 6: Final answer
    x = 27,409.60

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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.