Home / 19,898.55-27,453.48-11,401.65

Finding the Fourth Proportional to 19,898.55, 27,453.48 and 11,401.65

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Solution

The fourth proportional to 19,898.55, 27,453.48 and 11,401.65 is: 15,730.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,898.55 : 27,453.48 = 11,401.65 : x
  2. Step 2: Convert to fraction form
    19,898.55/27,453.48 = 11,401.65/x
  3. Step 3: Cross multiply
    19,898.55x = 27,453.48 × 11,401.65
  4. Step 4: Simplify right side
    19,898.55x = 313,014,970.24
  5. Step 5: Solve for x
    x = 313,014,970.24/19,898.55
  6. Step 6: Final answer
    x = 15,730.54

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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.