Home / 25,556.99-35,269.61-15,479.69

Finding the Fourth Proportional to 25,556.99, 35,269.61 and 15,479.69

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Solution

The fourth proportional to 25,556.99, 35,269.61 and 15,479.69 is: 21,362.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,556.99 : 35,269.61 = 15,479.69 : x
  2. Step 2: Convert to fraction form
    25,556.99/35,269.61 = 15,479.69/x
  3. Step 3: Cross multiply
    25,556.99x = 35,269.61 × 15,479.69
  4. Step 4: Simplify right side
    25,556.99x = 545,962,375.47
  5. Step 5: Solve for x
    x = 545,962,375.47/25,556.99
  6. Step 6: Final answer
    x = 21,362.55

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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.