Home / 21,639.08-32,458.78-6,847.72

Finding the Fourth Proportional to 21,639.08, 32,458.78 and 6,847.72

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Solution

The fourth proportional to 21,639.08, 32,458.78 and 6,847.72 is: 10,271.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,639.08 : 32,458.78 = 6,847.72 : x
  2. Step 2: Convert to fraction form
    21,639.08/32,458.78 = 6,847.72/x
  3. Step 3: Cross multiply
    21,639.08x = 32,458.78 × 6,847.72
  4. Step 4: Simplify right side
    21,639.08x = 222,268,636.98
  5. Step 5: Solve for x
    x = 222,268,636.98/21,639.08
  6. Step 6: Final answer
    x = 10,271.63

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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.