Home / 21,811.04-30,096.48-12,377.60

Finding the Fourth Proportional to 21,811.04, 30,096.48 and 12,377.60

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Solution

The fourth proportional to 21,811.04, 30,096.48 and 12,377.60 is: 17,079.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,811.04 : 30,096.48 = 12,377.60 : x
  2. Step 2: Convert to fraction form
    21,811.04/30,096.48 = 12,377.60/x
  3. Step 3: Cross multiply
    21,811.04x = 30,096.48 × 12,377.60
  4. Step 4: Simplify right side
    21,811.04x = 372,522,190.85
  5. Step 5: Solve for x
    x = 372,522,190.85/21,811.04
  6. Step 6: Final answer
    x = 17,079.52

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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.