Home / 20,153.21-30,235.28-7,006.60

Finding the Fourth Proportional to 20,153.21, 30,235.28 and 7,006.60

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Solution

The fourth proportional to 20,153.21, 30,235.28 and 7,006.60 is: 10,511.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,153.21 : 30,235.28 = 7,006.60 : x
  2. Step 2: Convert to fraction form
    20,153.21/30,235.28 = 7,006.60/x
  3. Step 3: Cross multiply
    20,153.21x = 30,235.28 × 7,006.60
  4. Step 4: Simplify right side
    20,153.21x = 211,846,515.61
  5. Step 5: Solve for x
    x = 211,846,515.61/20,153.21
  6. Step 6: Final answer
    x = 10,511.80

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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.