Home / 28,812.21-43,218.21-11,269.68

Finding the Fourth Proportional to 28,812.21, 43,218.21 and 11,269.68

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Solution

The fourth proportional to 28,812.21, 43,218.21 and 11,269.68 is: 16,904.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,812.21 : 43,218.21 = 11,269.68 : x
  2. Step 2: Convert to fraction form
    28,812.21/43,218.21 = 11,269.68/x
  3. Step 3: Cross multiply
    28,812.21x = 43,218.21 × 11,269.68
  4. Step 4: Simplify right side
    28,812.21x = 487,055,396.87
  5. Step 5: Solve for x
    x = 487,055,396.87/28,812.21
  6. Step 6: Final answer
    x = 16,904.48

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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.