Home / 19,093.10-28,639.65-13,188.20

Finding the Fourth Proportional to 19,093.10, 28,639.65 and 13,188.20

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Solution

The fourth proportional to 19,093.10, 28,639.65 and 13,188.20 is: 19,782.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,093.10 : 28,639.65 = 13,188.20 : x
  2. Step 2: Convert to fraction form
    19,093.10/28,639.65 = 13,188.20/x
  3. Step 3: Cross multiply
    19,093.10x = 28,639.65 × 13,188.20
  4. Step 4: Simplify right side
    19,093.10x = 377,705,432.13
  5. Step 5: Solve for x
    x = 377,705,432.13/19,093.10
  6. Step 6: Final answer
    x = 19,782.30

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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.