Home / 28,980.91-43,471.37-15,826.11

Finding the Fourth Proportional to 28,980.91, 43,471.37 and 15,826.11

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Solution

The fourth proportional to 28,980.91, 43,471.37 and 15,826.11 is: 23,739.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,980.91 : 43,471.37 = 15,826.11 : x
  2. Step 2: Convert to fraction form
    28,980.91/43,471.37 = 15,826.11/x
  3. Step 3: Cross multiply
    28,980.91x = 43,471.37 × 15,826.11
  4. Step 4: Simplify right side
    28,980.91x = 687,982,683.47
  5. Step 5: Solve for x
    x = 687,982,683.47/28,980.91
  6. Step 6: Final answer
    x = 23,739.17

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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.