Home / 21,074.06-31,611.08-6,282.60

Finding the Fourth Proportional to 21,074.06, 31,611.08 and 6,282.60

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Solution

The fourth proportional to 21,074.06, 31,611.08 and 6,282.60 is: 9,423.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,074.06 : 31,611.08 = 6,282.60 : x
  2. Step 2: Convert to fraction form
    21,074.06/31,611.08 = 6,282.60/x
  3. Step 3: Cross multiply
    21,074.06x = 31,611.08 × 6,282.60
  4. Step 4: Simplify right side
    21,074.06x = 198,599,771.21
  5. Step 5: Solve for x
    x = 198,599,771.21/21,074.06
  6. Step 6: Final answer
    x = 9,423.90

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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.