Home / 19,578.96-27,001.04-12,861.92

Finding the Fourth Proportional to 19,578.96, 27,001.04 and 12,861.92

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Solution

The fourth proportional to 19,578.96, 27,001.04 and 12,861.92 is: 17,737.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,578.96 : 27,001.04 = 12,861.92 : x
  2. Step 2: Convert to fraction form
    19,578.96/27,001.04 = 12,861.92/x
  3. Step 3: Cross multiply
    19,578.96x = 27,001.04 × 12,861.92
  4. Step 4: Simplify right side
    19,578.96x = 347,285,216.40
  5. Step 5: Solve for x
    x = 347,285,216.40/19,578.96
  6. Step 6: Final answer
    x = 17,737.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.