Home / 26,874.84-40,238.31-20,281.05

Finding the Fourth Proportional to 26,874.84, 40,238.31 and 20,281.05

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Solution

The fourth proportional to 26,874.84, 40,238.31 and 20,281.05 is: 30,365.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,874.84 : 40,238.31 = 20,281.05 : x
  2. Step 2: Convert to fraction form
    26,874.84/40,238.31 = 20,281.05/x
  3. Step 3: Cross multiply
    26,874.84x = 40,238.31 × 20,281.05
  4. Step 4: Simplify right side
    26,874.84x = 816,075,177.03
  5. Step 5: Solve for x
    x = 816,075,177.03/26,874.84
  6. Step 6: Final answer
    x = 30,365.77

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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.