Home / 19,025.40-28,554.30-8,511.60

Finding the Fourth Proportional to 19,025.40, 28,554.30 and 8,511.60

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Solution

The fourth proportional to 19,025.40, 28,554.30 and 8,511.60 is: 12,774.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,025.40 : 28,554.30 = 8,511.60 : x
  2. Step 2: Convert to fraction form
    19,025.40/28,554.30 = 8,511.60/x
  3. Step 3: Cross multiply
    19,025.40x = 28,554.30 × 8,511.60
  4. Step 4: Simplify right side
    19,025.40x = 243,042,779.88
  5. Step 5: Solve for x
    x = 243,042,779.88/19,025.40
  6. Step 6: Final answer
    x = 12,774.65

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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.