Home / 19,114.20-28,671.30-12,893.40

Finding the Fourth Proportional to 19,114.20, 28,671.30 and 12,893.40

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Solution

The fourth proportional to 19,114.20, 28,671.30 and 12,893.40 is: 19,340.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,114.20 : 28,671.30 = 12,893.40 : x
  2. Step 2: Convert to fraction form
    19,114.20/28,671.30 = 12,893.40/x
  3. Step 3: Cross multiply
    19,114.20x = 28,671.30 × 12,893.40
  4. Step 4: Simplify right side
    19,114.20x = 369,670,539.42
  5. Step 5: Solve for x
    x = 369,670,539.42/19,114.20
  6. Step 6: Final answer
    x = 19,340.10

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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.