Home / 20,646.21-30,977.52-6,608.40

Finding the Fourth Proportional to 20,646.21, 30,977.52 and 6,608.40

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Solution

The fourth proportional to 20,646.21, 30,977.52 and 6,608.40 is: 9,915.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,646.21 : 30,977.52 = 6,608.40 : x
  2. Step 2: Convert to fraction form
    20,646.21/30,977.52 = 6,608.40/x
  3. Step 3: Cross multiply
    20,646.21x = 30,977.52 × 6,608.40
  4. Step 4: Simplify right side
    20,646.21x = 204,711,843.17
  5. Step 5: Solve for x
    x = 204,711,843.17/20,646.21
  6. Step 6: Final answer
    x = 9,915.23

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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.