Home / 22,368.55-30,868.66-12,808.58

Finding the Fourth Proportional to 22,368.55, 30,868.66 and 12,808.58

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Solution

The fourth proportional to 22,368.55, 30,868.66 and 12,808.58 is: 17,675.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,368.55 : 30,868.66 = 12,808.58 : x
  2. Step 2: Convert to fraction form
    22,368.55/30,868.66 = 12,808.58/x
  3. Step 3: Cross multiply
    22,368.55x = 30,868.66 × 12,808.58
  4. Step 4: Simplify right side
    22,368.55x = 395,383,736.41
  5. Step 5: Solve for x
    x = 395,383,736.41/22,368.55
  6. Step 6: Final answer
    x = 17,675.88

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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.