Home / 28,820.22-43,230.20-11,277.68

Finding the Fourth Proportional to 28,820.22, 43,230.20 and 11,277.68

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Solution

The fourth proportional to 28,820.22, 43,230.20 and 11,277.68 is: 16,916.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,820.22 : 43,230.20 = 11,277.68 : x
  2. Step 2: Convert to fraction form
    28,820.22/43,230.20 = 11,277.68/x
  3. Step 3: Cross multiply
    28,820.22x = 43,230.20 × 11,277.68
  4. Step 4: Simplify right side
    28,820.22x = 487,536,361.94
  5. Step 5: Solve for x
    x = 487,536,361.94/28,820.22
  6. Step 6: Final answer
    x = 16,916.47

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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.