Home / 28,718.56-43,033.86-19,323.78

Finding the Fourth Proportional to 28,718.56, 43,033.86 and 19,323.78

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Solution

The fourth proportional to 28,718.56, 43,033.86 and 19,323.78 is: 28,956.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,718.56 : 43,033.86 = 19,323.78 : x
  2. Step 2: Convert to fraction form
    28,718.56/43,033.86 = 19,323.78/x
  3. Step 3: Cross multiply
    28,718.56x = 43,033.86 × 19,323.78
  4. Step 4: Simplify right side
    28,718.56x = 831,576,843.19
  5. Step 5: Solve for x
    x = 831,576,843.19/28,718.56
  6. Step 6: Final answer
    x = 28,956.08

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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.