Home / 28,945.99-43,418.18-9,225.73

Finding the Fourth Proportional to 28,945.99, 43,418.18 and 9,225.73

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Solution

The fourth proportional to 28,945.99, 43,418.18 and 9,225.73 is: 13,838.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,945.99 : 43,418.18 = 9,225.73 : x
  2. Step 2: Convert to fraction form
    28,945.99/43,418.18 = 9,225.73/x
  3. Step 3: Cross multiply
    28,945.99x = 43,418.18 × 9,225.73
  4. Step 4: Simplify right side
    28,945.99x = 400,564,431.21
  5. Step 5: Solve for x
    x = 400,564,431.21/28,945.99
  6. Step 6: Final answer
    x = 13,838.34

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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.