Home / 19,121.52-28,680.48-5,973.36

Finding the Fourth Proportional to 19,121.52, 28,680.48 and 5,973.36

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Solution

The fourth proportional to 19,121.52, 28,680.48 and 5,973.36 is: 8,959.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,121.52 : 28,680.48 = 5,973.36 : x
  2. Step 2: Convert to fraction form
    19,121.52/28,680.48 = 5,973.36/x
  3. Step 3: Cross multiply
    19,121.52x = 28,680.48 × 5,973.36
  4. Step 4: Simplify right side
    19,121.52x = 171,318,832.01
  5. Step 5: Solve for x
    x = 171,318,832.01/19,121.52
  6. Step 6: Final answer
    x = 8,959.48

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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.