Home / 21,416.86-32,121.42-5,830.84

Finding the Fourth Proportional to 21,416.86, 32,121.42 and 5,830.84

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Solution

The fourth proportional to 21,416.86, 32,121.42 and 5,830.84 is: 8,745.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,416.86 : 32,121.42 = 5,830.84 : x
  2. Step 2: Convert to fraction form
    21,416.86/32,121.42 = 5,830.84/x
  3. Step 3: Cross multiply
    21,416.86x = 32,121.42 × 5,830.84
  4. Step 4: Simplify right side
    21,416.86x = 187,294,860.59
  5. Step 5: Solve for x
    x = 187,294,860.59/21,416.86
  6. Step 6: Final answer
    x = 8,745.21

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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.