Home / 20,597.96-28,426.64-11,645.54

Finding the Fourth Proportional to 20,597.96, 28,426.64 and 11,645.54

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Solution

The fourth proportional to 20,597.96, 28,426.64 and 11,645.54 is: 16,071.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,597.96 : 28,426.64 = 11,645.54 : x
  2. Step 2: Convert to fraction form
    20,597.96/28,426.64 = 11,645.54/x
  3. Step 3: Cross multiply
    20,597.96x = 28,426.64 × 11,645.54
  4. Step 4: Simplify right side
    20,597.96x = 331,043,586.02
  5. Step 5: Solve for x
    x = 331,043,586.02/20,597.96
  6. Step 6: Final answer
    x = 16,071.67

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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.