Home / 28,364.98-39,141.03-16,429.09

Finding the Fourth Proportional to 28,364.98, 39,141.03 and 16,429.09

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Solution

The fourth proportional to 28,364.98, 39,141.03 and 16,429.09 is: 22,670.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,364.98 : 39,141.03 = 16,429.09 : x
  2. Step 2: Convert to fraction form
    28,364.98/39,141.03 = 16,429.09/x
  3. Step 3: Cross multiply
    28,364.98x = 39,141.03 × 16,429.09
  4. Step 4: Simplify right side
    28,364.98x = 643,051,504.56
  5. Step 5: Solve for x
    x = 643,051,504.56/28,364.98
  6. Step 6: Final answer
    x = 22,670.61

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1.5x scale

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.