Home / 25,765.72-35,556.64-15,155.36

Finding the Fourth Proportional to 25,765.72, 35,556.64 and 15,155.36

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Solution

The fourth proportional to 25,765.72, 35,556.64 and 15,155.36 is: 20,914.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,765.72 : 35,556.64 = 15,155.36 : x
  2. Step 2: Convert to fraction form
    25,765.72/35,556.64 = 15,155.36/x
  3. Step 3: Cross multiply
    25,765.72x = 35,556.64 × 15,155.36
  4. Step 4: Simplify right side
    25,765.72x = 538,873,679.59
  5. Step 5: Solve for x
    x = 538,873,679.59/25,765.72
  6. Step 6: Final answer
    x = 20,914.37

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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.