Home / 19,234.40-28,819.20-15,929.60

Finding the Fourth Proportional to 19,234.40, 28,819.20 and 15,929.60

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Solution

The fourth proportional to 19,234.40, 28,819.20 and 15,929.60 is: 23,867.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,234.40 : 28,819.20 = 15,929.60 : x
  2. Step 2: Convert to fraction form
    19,234.40/28,819.20 = 15,929.60/x
  3. Step 3: Cross multiply
    19,234.40x = 28,819.20 × 15,929.60
  4. Step 4: Simplify right side
    19,234.40x = 459,078,328.32
  5. Step 5: Solve for x
    x = 459,078,328.32/19,234.40
  6. Step 6: Final answer
    x = 23,867.57

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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.