Home / 19,121.13-28,672.38-5,973.48

Finding the Fourth Proportional to 19,121.13, 28,672.38 and 5,973.48

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Solution

The fourth proportional to 19,121.13, 28,672.38 and 5,973.48 is: 8,957.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,121.13 : 28,672.38 = 5,973.48 : x
  2. Step 2: Convert to fraction form
    19,121.13/28,672.38 = 5,973.48/x
  3. Step 3: Cross multiply
    19,121.13x = 28,672.38 × 5,973.48
  4. Step 4: Simplify right side
    19,121.13x = 171,273,888.48
  5. Step 5: Solve for x
    x = 171,273,888.48/19,121.13
  6. Step 6: Final answer
    x = 8,957.31

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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.