Home / 26,677.20-39,964.60-15,720.40

Finding the Fourth Proportional to 26,677.20, 39,964.60 and 15,720.40

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Solution

The fourth proportional to 26,677.20, 39,964.60 and 15,720.40 is: 23,550.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,677.20 : 39,964.60 = 15,720.40 : x
  2. Step 2: Convert to fraction form
    26,677.20/39,964.60 = 15,720.40/x
  3. Step 3: Cross multiply
    26,677.20x = 39,964.60 × 15,720.40
  4. Step 4: Simplify right side
    26,677.20x = 628,259,497.84
  5. Step 5: Solve for x
    x = 628,259,497.84/26,677.20
  6. Step 6: Final answer
    x = 23,550.43

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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.