Home / 20,161.71-27,751.55-14,774.67

Finding the Fourth Proportional to 20,161.71, 27,751.55 and 14,774.67

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Solution

The fourth proportional to 20,161.71, 27,751.55 and 14,774.67 is: 20,336.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,161.71 : 27,751.55 = 14,774.67 : x
  2. Step 2: Convert to fraction form
    20,161.71/27,751.55 = 14,774.67/x
  3. Step 3: Cross multiply
    20,161.71x = 27,751.55 × 14,774.67
  4. Step 4: Simplify right side
    20,161.71x = 410,019,919.37
  5. Step 5: Solve for x
    x = 410,019,919.37/20,161.71
  6. Step 6: Final answer
    x = 20,336.56

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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.