Home / 21,249.21-31,873.89-5,666.84

Finding the Fourth Proportional to 21,249.21, 31,873.89 and 5,666.84

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Solution

The fourth proportional to 21,249.21, 31,873.89 and 5,666.84 is: 8,500.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,249.21 : 31,873.89 = 5,666.84 : x
  2. Step 2: Convert to fraction form
    21,249.21/31,873.89 = 5,666.84/x
  3. Step 3: Cross multiply
    21,249.21x = 31,873.89 × 5,666.84
  4. Step 4: Simplify right side
    21,249.21x = 180,624,075.44
  5. Step 5: Solve for x
    x = 180,624,075.44/21,249.21
  6. Step 6: Final answer
    x = 8,500.27

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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.