Home / 19,340.85-28,962.04-12,747.05

Finding the Fourth Proportional to 19,340.85, 28,962.04 and 12,747.05

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Solution

The fourth proportional to 19,340.85, 28,962.04 and 12,747.05 is: 19,088.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,340.85 : 28,962.04 = 12,747.05 : x
  2. Step 2: Convert to fraction form
    19,340.85/28,962.04 = 12,747.05/x
  3. Step 3: Cross multiply
    19,340.85x = 28,962.04 × 12,747.05
  4. Step 4: Simplify right side
    19,340.85x = 369,180,363.44
  5. Step 5: Solve for x
    x = 369,180,363.44/19,340.85
  6. Step 6: Final answer
    x = 19,088.11

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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.