Home / 19,264.16-28,828.20-11,870.48

Finding the Fourth Proportional to 19,264.16, 28,828.20 and 11,870.48

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Solution

The fourth proportional to 19,264.16, 28,828.20 and 11,870.48 is: 17,763.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,264.16 : 28,828.20 = 11,870.48 : x
  2. Step 2: Convert to fraction form
    19,264.16/28,828.20 = 11,870.48/x
  3. Step 3: Cross multiply
    19,264.16x = 28,828.20 × 11,870.48
  4. Step 4: Simplify right side
    19,264.16x = 342,204,571.54
  5. Step 5: Solve for x
    x = 342,204,571.54/19,264.16
  6. Step 6: Final answer
    x = 17,763.79

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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.