Home / 21,845.88-32,760.48-7,803.28

Finding the Fourth Proportional to 21,845.88, 32,760.48 and 7,803.28

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Solution

The fourth proportional to 21,845.88, 32,760.48 and 7,803.28 is: 11,701.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,845.88 : 32,760.48 = 7,803.28 : x
  2. Step 2: Convert to fraction form
    21,845.88/32,760.48 = 7,803.28/x
  3. Step 3: Cross multiply
    21,845.88x = 32,760.48 × 7,803.28
  4. Step 4: Simplify right side
    21,845.88x = 255,639,198.37
  5. Step 5: Solve for x
    x = 255,639,198.37/21,845.88
  6. Step 6: Final answer
    x = 11,701.94

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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.