Home / 19,256.25-28,889.24-5,405.25

Finding the Fourth Proportional to 19,256.25, 28,889.24 and 5,405.25

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Solution

The fourth proportional to 19,256.25, 28,889.24 and 5,405.25 is: 8,109.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,256.25 : 28,889.24 = 5,405.25 : x
  2. Step 2: Convert to fraction form
    19,256.25/28,889.24 = 5,405.25/x
  3. Step 3: Cross multiply
    19,256.25x = 28,889.24 × 5,405.25
  4. Step 4: Simplify right side
    19,256.25x = 156,153,578.02
  5. Step 5: Solve for x
    x = 156,153,578.02/19,256.25
  6. Step 6: Final answer
    x = 8,109.24

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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.