Home / 18,470.54-25,456.38-13,983.54

Finding the Fourth Proportional to 18,470.54, 25,456.38 and 13,983.54

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Solution

The fourth proportional to 18,470.54, 25,456.38 and 13,983.54 is: 19,272.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,470.54 : 25,456.38 = 13,983.54 : x
  2. Step 2: Convert to fraction form
    18,470.54/25,456.38 = 13,983.54/x
  3. Step 3: Cross multiply
    18,470.54x = 25,456.38 × 13,983.54
  4. Step 4: Simplify right side
    18,470.54x = 355,970,307.99
  5. Step 5: Solve for x
    x = 355,970,307.99/18,470.54
  6. Step 6: Final answer
    x = 19,272.33

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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.