Home / 19,638.32-27,100.04-10,685.66

Finding the Fourth Proportional to 19,638.32, 27,100.04 and 10,685.66

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Solution

The fourth proportional to 19,638.32, 27,100.04 and 10,685.66 is: 14,745.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,638.32 : 27,100.04 = 10,685.66 : x
  2. Step 2: Convert to fraction form
    19,638.32/27,100.04 = 10,685.66/x
  3. Step 3: Cross multiply
    19,638.32x = 27,100.04 × 10,685.66
  4. Step 4: Simplify right side
    19,638.32x = 289,581,624.50
  5. Step 5: Solve for x
    x = 289,581,624.50/19,638.32
  6. Step 6: Final answer
    x = 14,745.75

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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.