Home / 25,865.88-35,686.62-15,935.64

Finding the Fourth Proportional to 25,865.88, 35,686.62 and 15,935.64

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Solution

The fourth proportional to 25,865.88, 35,686.62 and 15,935.64 is: 21,986.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,865.88 : 35,686.62 = 15,935.64 : x
  2. Step 2: Convert to fraction form
    25,865.88/35,686.62 = 15,935.64/x
  3. Step 3: Cross multiply
    25,865.88x = 35,686.62 × 15,935.64
  4. Step 4: Simplify right side
    25,865.88x = 568,689,129.14
  5. Step 5: Solve for x
    x = 568,689,129.14/25,865.88
  6. Step 6: Final answer
    x = 21,986.07

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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.