Home / 21,836.84-30,104.30-18,466.11

Finding the Fourth Proportional to 21,836.84, 30,104.30 and 18,466.11

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Solution

The fourth proportional to 21,836.84, 30,104.30 and 18,466.11 is: 25,457.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,836.84 : 30,104.30 = 18,466.11 : x
  2. Step 2: Convert to fraction form
    21,836.84/30,104.30 = 18,466.11/x
  3. Step 3: Cross multiply
    21,836.84x = 30,104.30 × 18,466.11
  4. Step 4: Simplify right side
    21,836.84x = 555,909,361.44
  5. Step 5: Solve for x
    x = 555,909,361.44/21,836.84
  6. Step 6: Final answer
    x = 25,457.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.