Home / 26,106.80-39,138.60-13,794.80

Finding the Fourth Proportional to 26,106.80, 39,138.60 and 13,794.80

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Solution

The fourth proportional to 26,106.80, 39,138.60 and 13,794.80 is: 20,680.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,106.80 : 39,138.60 = 13,794.80 : x
  2. Step 2: Convert to fraction form
    26,106.80/39,138.60 = 13,794.80/x
  3. Step 3: Cross multiply
    26,106.80x = 39,138.60 × 13,794.80
  4. Step 4: Simplify right side
    26,106.80x = 539,909,159.28
  5. Step 5: Solve for x
    x = 539,909,159.28/26,106.80
  6. Step 6: Final answer
    x = 20,680.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.