Home / 21,651.74-32,478.52-6,860.33

Finding the Fourth Proportional to 21,651.74, 32,478.52 and 6,860.33

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Solution

The fourth proportional to 21,651.74, 32,478.52 and 6,860.33 is: 10,290.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,651.74 : 32,478.52 = 6,860.33 : x
  2. Step 2: Convert to fraction form
    21,651.74/32,478.52 = 6,860.33/x
  3. Step 3: Cross multiply
    21,651.74x = 32,478.52 × 6,860.33
  4. Step 4: Simplify right side
    21,651.74x = 222,813,320.23
  5. Step 5: Solve for x
    x = 222,813,320.23/21,651.74
  6. Step 6: Final answer
    x = 10,290.78

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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.