Home / 28,945.17-39,942.39-16,196.13

Finding the Fourth Proportional to 28,945.17, 39,942.39 and 16,196.13

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Solution

The fourth proportional to 28,945.17, 39,942.39 and 16,196.13 is: 22,349.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,945.17 : 39,942.39 = 16,196.13 : x
  2. Step 2: Convert to fraction form
    28,945.17/39,942.39 = 16,196.13/x
  3. Step 3: Cross multiply
    28,945.17x = 39,942.39 × 16,196.13
  4. Step 4: Simplify right side
    28,945.17x = 646,912,140.95
  5. Step 5: Solve for x
    x = 646,912,140.95/28,945.17
  6. Step 6: Final answer
    x = 22,349.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.