Home / 30,409.72-45,414.93-25,919.56

Finding the Fourth Proportional to 30,409.72, 45,414.93 and 25,919.56

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Solution

The fourth proportional to 30,409.72, 45,414.93 and 25,919.56 is: 38,709.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,409.72 : 45,414.93 = 25,919.56 : x
  2. Step 2: Convert to fraction form
    30,409.72/45,414.93 = 25,919.56/x
  3. Step 3: Cross multiply
    30,409.72x = 45,414.93 × 25,919.56
  4. Step 4: Simplify right side
    30,409.72x = 1,177,135,003.03
  5. Step 5: Solve for x
    x = 1,177,135,003.03/30,409.72
  6. Step 6: Final answer
    x = 38,709.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.