Home / 26,106.21-39,108.29-12,918.60

Finding the Fourth Proportional to 26,106.21, 39,108.29 and 12,918.60

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Solution

The fourth proportional to 26,106.21, 39,108.29 and 12,918.60 is: 19,352.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,106.21 : 39,108.29 = 12,918.60 : x
  2. Step 2: Convert to fraction form
    26,106.21/39,108.29 = 12,918.60/x
  3. Step 3: Cross multiply
    26,106.21x = 39,108.29 × 12,918.60
  4. Step 4: Simplify right side
    26,106.21x = 505,224,290.60
  5. Step 5: Solve for x
    x = 505,224,290.60/26,106.21
  6. Step 6: Final answer
    x = 19,352.65

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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.