Home / 20,943.69-28,902.32-11,383.62

Finding the Fourth Proportional to 20,943.69, 28,902.32 and 11,383.62

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Solution

The fourth proportional to 20,943.69, 28,902.32 and 11,383.62 is: 15,709.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,943.69 : 28,902.32 = 11,383.62 : x
  2. Step 2: Convert to fraction form
    20,943.69/28,902.32 = 11,383.62/x
  3. Step 3: Cross multiply
    20,943.69x = 28,902.32 × 11,383.62
  4. Step 4: Simplify right side
    20,943.69x = 329,013,028.00
  5. Step 5: Solve for x
    x = 329,013,028.00/20,943.69
  6. Step 6: Final answer
    x = 15,709.41

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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.