Home / 26,857.68-40,315.68-19,815.60

Finding the Fourth Proportional to 26,857.68, 40,315.68 and 19,815.60

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Solution

The fourth proportional to 26,857.68, 40,315.68 and 19,815.60 is: 29,744.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,857.68 : 40,315.68 = 19,815.60 : x
  2. Step 2: Convert to fraction form
    26,857.68/40,315.68 = 19,815.60/x
  3. Step 3: Cross multiply
    26,857.68x = 40,315.68 × 19,815.60
  4. Step 4: Simplify right side
    26,857.68x = 798,879,388.61
  5. Step 5: Solve for x
    x = 798,879,388.61/26,857.68
  6. Step 6: Final answer
    x = 29,744.91

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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.