Home / 20,461.12-30,697.44-6,611.20

Finding the Fourth Proportional to 20,461.12, 30,697.44 and 6,611.20

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Solution

The fourth proportional to 20,461.12, 30,697.44 and 6,611.20 is: 9,918.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,461.12 : 30,697.44 = 6,611.20 : x
  2. Step 2: Convert to fraction form
    20,461.12/30,697.44 = 6,611.20/x
  3. Step 3: Cross multiply
    20,461.12x = 30,697.44 × 6,611.20
  4. Step 4: Simplify right side
    20,461.12x = 202,946,915.33
  5. Step 5: Solve for x
    x = 202,946,915.33/20,461.12
  6. Step 6: Final answer
    x = 9,918.66

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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.