Home / 26,378.34-36,419.67-20,735.88

Finding the Fourth Proportional to 26,378.34, 36,419.67 and 20,735.88

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Solution

The fourth proportional to 26,378.34, 36,419.67 and 20,735.88 is: 28,629.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,378.34 : 36,419.67 = 20,735.88 : x
  2. Step 2: Convert to fraction form
    26,378.34/36,419.67 = 20,735.88/x
  3. Step 3: Cross multiply
    26,378.34x = 36,419.67 × 20,735.88
  4. Step 4: Simplify right side
    26,378.34x = 755,193,906.76
  5. Step 5: Solve for x
    x = 755,193,906.76/26,378.34
  6. Step 6: Final answer
    x = 28,629.32

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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.