Home / 26,448.90-39,674.30-8,918.88

Finding the Fourth Proportional to 26,448.90, 39,674.30 and 8,918.88

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Solution

The fourth proportional to 26,448.90, 39,674.30 and 8,918.88 is: 13,378.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,448.90 : 39,674.30 = 8,918.88 : x
  2. Step 2: Convert to fraction form
    26,448.90/39,674.30 = 8,918.88/x
  3. Step 3: Cross multiply
    26,448.90x = 39,674.30 × 8,918.88
  4. Step 4: Simplify right side
    26,448.90x = 353,850,320.78
  5. Step 5: Solve for x
    x = 353,850,320.78/26,448.90
  6. Step 6: Final answer
    x = 13,378.64

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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.