Home / 30,858.48-46,361.61-19,786.86

Finding the Fourth Proportional to 30,858.48, 46,361.61 and 19,786.86

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Solution

The fourth proportional to 30,858.48, 46,361.61 and 19,786.86 is: 29,727.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,858.48 : 46,361.61 = 19,786.86 : x
  2. Step 2: Convert to fraction form
    30,858.48/46,361.61 = 19,786.86/x
  3. Step 3: Cross multiply
    30,858.48x = 46,361.61 × 19,786.86
  4. Step 4: Simplify right side
    30,858.48x = 917,350,686.44
  5. Step 5: Solve for x
    x = 917,350,686.44/30,858.48
  6. Step 6: Final answer
    x = 29,727.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.