Home / 19,289.40-28,938.33-8,205.57

Finding the Fourth Proportional to 19,289.40, 28,938.33 and 8,205.57

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Solution

The fourth proportional to 19,289.40, 28,938.33 and 8,205.57 is: 12,310.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,289.40 : 28,938.33 = 8,205.57 : x
  2. Step 2: Convert to fraction form
    19,289.40/28,938.33 = 8,205.57/x
  3. Step 3: Cross multiply
    19,289.40x = 28,938.33 × 8,205.57
  4. Step 4: Simplify right side
    19,289.40x = 237,455,492.50
  5. Step 5: Solve for x
    x = 237,455,492.50/19,289.40
  6. Step 6: Final answer
    x = 12,310.15

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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.