Home / 21,860.20-32,786.78-6,274.28

Finding the Fourth Proportional to 21,860.20, 32,786.78 and 6,274.28

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Solution

The fourth proportional to 21,860.20, 32,786.78 and 6,274.28 is: 9,410.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,860.20 : 32,786.78 = 6,274.28 : x
  2. Step 2: Convert to fraction form
    21,860.20/32,786.78 = 6,274.28/x
  3. Step 3: Cross multiply
    21,860.20x = 32,786.78 × 6,274.28
  4. Step 4: Simplify right side
    21,860.20x = 205,713,438.02
  5. Step 5: Solve for x
    x = 205,713,438.02/21,860.20
  6. Step 6: Final answer
    x = 9,410.41

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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.