Home / 28,756.21-43,138.67-9,032.91

Finding the Fourth Proportional to 28,756.21, 43,138.67 and 9,032.91

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Solution

The fourth proportional to 28,756.21, 43,138.67 and 9,032.91 is: 13,550.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,756.21 : 43,138.67 = 9,032.91 : x
  2. Step 2: Convert to fraction form
    28,756.21/43,138.67 = 9,032.91/x
  3. Step 3: Cross multiply
    28,756.21x = 43,138.67 × 9,032.91
  4. Step 4: Simplify right side
    28,756.21x = 389,667,723.63
  5. Step 5: Solve for x
    x = 389,667,723.63/28,756.21
  6. Step 6: Final answer
    x = 13,550.73

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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.