Home / 21,577.84-32,371.36-12,222.28

Finding the Fourth Proportional to 21,577.84, 32,371.36 and 12,222.28

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Solution

The fourth proportional to 21,577.84, 32,371.36 and 12,222.28 is: 18,336.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,577.84 : 32,371.36 = 12,222.28 : x
  2. Step 2: Convert to fraction form
    21,577.84/32,371.36 = 12,222.28/x
  3. Step 3: Cross multiply
    21,577.84x = 32,371.36 × 12,222.28
  4. Step 4: Simplify right side
    21,577.84x = 395,651,825.90
  5. Step 5: Solve for x
    x = 395,651,825.90/21,577.84
  6. Step 6: Final answer
    x = 18,336.03

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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.