Home / 25,763.38-35,556.51-15,697.78

Finding the Fourth Proportional to 25,763.38, 35,556.51 and 15,697.78

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Solution

The fourth proportional to 25,763.38, 35,556.51 and 15,697.78 is: 21,664.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,763.38 : 35,556.51 = 15,697.78 : x
  2. Step 2: Convert to fraction form
    25,763.38/35,556.51 = 15,697.78/x
  3. Step 3: Cross multiply
    25,763.38x = 35,556.51 × 15,697.78
  4. Step 4: Simplify right side
    25,763.38x = 558,158,271.55
  5. Step 5: Solve for x
    x = 558,158,271.55/25,763.38
  6. Step 6: Final answer
    x = 21,664.79

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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.