Home / 28,880.56-43,334.28-15,717.28

Finding the Fourth Proportional to 28,880.56, 43,334.28 and 15,717.28

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Solution

The fourth proportional to 28,880.56, 43,334.28 and 15,717.28 is: 23,583.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,880.56 : 43,334.28 = 15,717.28 : x
  2. Step 2: Convert to fraction form
    28,880.56/43,334.28 = 15,717.28/x
  3. Step 3: Cross multiply
    28,880.56x = 43,334.28 × 15,717.28
  4. Step 4: Simplify right side
    28,880.56x = 681,097,012.36
  5. Step 5: Solve for x
    x = 681,097,012.36/28,880.56
  6. Step 6: Final answer
    x = 23,583.23

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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.