Home / 21,690.21-32,544.63-6,900.33

Finding the Fourth Proportional to 21,690.21, 32,544.63 and 6,900.33

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Solution

The fourth proportional to 21,690.21, 32,544.63 and 6,900.33 is: 10,353.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,690.21 : 32,544.63 = 6,900.33 : x
  2. Step 2: Convert to fraction form
    21,690.21/32,544.63 = 6,900.33/x
  3. Step 3: Cross multiply
    21,690.21x = 32,544.63 × 6,900.33
  4. Step 4: Simplify right side
    21,690.21x = 224,568,686.73
  5. Step 5: Solve for x
    x = 224,568,686.73/21,690.21
  6. Step 6: Final answer
    x = 10,353.46

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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.