Home / 20,196.40-27,869.95-11,243.67

Finding the Fourth Proportional to 20,196.40, 27,869.95 and 11,243.67

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Solution

The fourth proportional to 20,196.40, 27,869.95 and 11,243.67 is: 15,515.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,196.40 : 27,869.95 = 11,243.67 : x
  2. Step 2: Convert to fraction form
    20,196.40/27,869.95 = 11,243.67/x
  3. Step 3: Cross multiply
    20,196.40x = 27,869.95 × 11,243.67
  4. Step 4: Simplify right side
    20,196.40x = 313,360,520.72
  5. Step 5: Solve for x
    x = 313,360,520.72/20,196.40
  6. Step 6: Final answer
    x = 15,515.66

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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.