Home / 20,672.44-30,973-11,319.19

Finding the Fourth Proportional to 20,672.44, 30,973 and 11,319.19

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Solution

The fourth proportional to 20,672.44, 30,973 and 11,319.19 is: 16,959.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,672.44 : 30,973 = 11,319.19 : x
  2. Step 2: Convert to fraction form
    20,672.44/30,973 = 11,319.19/x
  3. Step 3: Cross multiply
    20,672.44x = 30,973 × 11,319.19
  4. Step 4: Simplify right side
    20,672.44x = 350,589,271.87
  5. Step 5: Solve for x
    x = 350,589,271.87/20,672.44
  6. Step 6: Final answer
    x = 16,959.26

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1.5x scale

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.