Home / 19,399.61-29,078.70-11,061.67

Finding the Fourth Proportional to 19,399.61, 29,078.70 and 11,061.67

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Solution

The fourth proportional to 19,399.61, 29,078.70 and 11,061.67 is: 16,580.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,399.61 : 29,078.70 = 11,061.67 : x
  2. Step 2: Convert to fraction form
    19,399.61/29,078.70 = 11,061.67/x
  3. Step 3: Cross multiply
    19,399.61x = 29,078.70 × 11,061.67
  4. Step 4: Simplify right side
    19,399.61x = 321,658,983.43
  5. Step 5: Solve for x
    x = 321,658,983.43/19,399.61
  6. Step 6: Final answer
    x = 16,580.69

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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.