Home / 28,900.72-43,352.58-9,180.82

Finding the Fourth Proportional to 28,900.72, 43,352.58 and 9,180.82

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Solution

The fourth proportional to 28,900.72, 43,352.58 and 9,180.82 is: 13,771.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,900.72 : 43,352.58 = 9,180.82 : x
  2. Step 2: Convert to fraction form
    28,900.72/43,352.58 = 9,180.82/x
  3. Step 3: Cross multiply
    28,900.72x = 43,352.58 × 9,180.82
  4. Step 4: Simplify right side
    28,900.72x = 398,012,233.52
  5. Step 5: Solve for x
    x = 398,012,233.52/28,900.72
  6. Step 6: Final answer
    x = 13,771.71

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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.