Home / 26,138.09-39,209.27-15,679.58

Finding the Fourth Proportional to 26,138.09, 39,209.27 and 15,679.58

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Solution

The fourth proportional to 26,138.09, 39,209.27 and 15,679.58 is: 23,520.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,138.09 : 39,209.27 = 15,679.58 : x
  2. Step 2: Convert to fraction form
    26,138.09/39,209.27 = 15,679.58/x
  3. Step 3: Cross multiply
    26,138.09x = 39,209.27 × 15,679.58
  4. Step 4: Simplify right side
    26,138.09x = 614,784,611.26
  5. Step 5: Solve for x
    x = 614,784,611.26/26,138.09
  6. Step 6: Final answer
    x = 23,520.64

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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.