Home / 21,939.95-32,912.52-7,704.07

Finding the Fourth Proportional to 21,939.95, 32,912.52 and 7,704.07

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Solution

The fourth proportional to 21,939.95, 32,912.52 and 7,704.07 is: 11,557.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,939.95 : 32,912.52 = 7,704.07 : x
  2. Step 2: Convert to fraction form
    21,939.95/32,912.52 = 7,704.07/x
  3. Step 3: Cross multiply
    21,939.95x = 32,912.52 × 7,704.07
  4. Step 4: Simplify right side
    21,939.95x = 253,560,275.68
  5. Step 5: Solve for x
    x = 253,560,275.68/21,939.95
  6. Step 6: Final answer
    x = 11,557.01

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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.