Home / 21,512.90-32,268.80-6,728.78

Finding the Fourth Proportional to 21,512.90, 32,268.80 and 6,728.78

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Solution

The fourth proportional to 21,512.90, 32,268.80 and 6,728.78 is: 10,093.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,512.90 : 32,268.80 = 6,728.78 : x
  2. Step 2: Convert to fraction form
    21,512.90/32,268.80 = 6,728.78/x
  3. Step 3: Cross multiply
    21,512.90x = 32,268.80 × 6,728.78
  4. Step 4: Simplify right side
    21,512.90x = 217,129,656.06
  5. Step 5: Solve for x
    x = 217,129,656.06/21,512.90
  6. Step 6: Final answer
    x = 10,093.00

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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.