Home / 20,772.72-28,696.68-17,973.36

Finding the Fourth Proportional to 20,772.72, 28,696.68 and 17,973.36

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Solution

The fourth proportional to 20,772.72, 28,696.68 and 17,973.36 is: 24,829.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,772.72 : 28,696.68 = 17,973.36 : x
  2. Step 2: Convert to fraction form
    20,772.72/28,696.68 = 17,973.36/x
  3. Step 3: Cross multiply
    20,772.72x = 28,696.68 × 17,973.36
  4. Step 4: Simplify right side
    20,772.72x = 515,775,760.44
  5. Step 5: Solve for x
    x = 515,775,760.44/20,772.72
  6. Step 6: Final answer
    x = 24,829.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.