Home / 25,812.15-35,622.81-15,203.85

Finding the Fourth Proportional to 25,812.15, 35,622.81 and 15,203.85

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Solution

The fourth proportional to 25,812.15, 35,622.81 and 15,203.85 is: 20,982.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,812.15 : 35,622.81 = 15,203.85 : x
  2. Step 2: Convert to fraction form
    25,812.15/35,622.81 = 15,203.85/x
  3. Step 3: Cross multiply
    25,812.15x = 35,622.81 × 15,203.85
  4. Step 4: Simplify right side
    25,812.15x = 541,603,859.82
  5. Step 5: Solve for x
    x = 541,603,859.82/25,812.15
  6. Step 6: Final answer
    x = 20,982.52

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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.