Home / 28,921.26-43,383.39-8,146.38

Finding the Fourth Proportional to 28,921.26, 43,383.39 and 8,146.38

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Solution

The fourth proportional to 28,921.26, 43,383.39 and 8,146.38 is: 12,219.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,921.26 : 43,383.39 = 8,146.38 : x
  2. Step 2: Convert to fraction form
    28,921.26/43,383.39 = 8,146.38/x
  3. Step 3: Cross multiply
    28,921.26x = 43,383.39 × 8,146.38
  4. Step 4: Simplify right side
    28,921.26x = 353,417,580.63
  5. Step 5: Solve for x
    x = 353,417,580.63/28,921.26
  6. Step 6: Final answer
    x = 12,219.99

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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.