Home / 19,234.03-28,854.02-8,140.78

Finding the Fourth Proportional to 19,234.03, 28,854.02 and 8,140.78

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Solution

The fourth proportional to 19,234.03, 28,854.02 and 8,140.78 is: 12,212.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,234.03 : 28,854.02 = 8,140.78 : x
  2. Step 2: Convert to fraction form
    19,234.03/28,854.02 = 8,140.78/x
  3. Step 3: Cross multiply
    19,234.03x = 28,854.02 × 8,140.78
  4. Step 4: Simplify right side
    19,234.03x = 234,894,228.94
  5. Step 5: Solve for x
    x = 234,894,228.94/19,234.03
  6. Step 6: Final answer
    x = 12,212.43

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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.