Home / 28,977.21-39,994.43-16,406.01

Finding the Fourth Proportional to 28,977.21, 39,994.43 and 16,406.01

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Solution

The fourth proportional to 28,977.21, 39,994.43 and 16,406.01 is: 22,643.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,977.21 : 39,994.43 = 16,406.01 : x
  2. Step 2: Convert to fraction form
    28,977.21/39,994.43 = 16,406.01/x
  3. Step 3: Cross multiply
    28,977.21x = 39,994.43 × 16,406.01
  4. Step 4: Simplify right side
    28,977.21x = 656,148,936.49
  5. Step 5: Solve for x
    x = 656,148,936.49/28,977.21
  6. Step 6: Final answer
    x = 22,643.62

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.