Home / 28,369.03-39,143.33-16,431.65

Finding the Fourth Proportional to 28,369.03, 39,143.33 and 16,431.65

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Solution

The fourth proportional to 28,369.03, 39,143.33 and 16,431.65 is: 22,672.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,369.03 : 39,143.33 = 16,431.65 : x
  2. Step 2: Convert to fraction form
    28,369.03/39,143.33 = 16,431.65/x
  3. Step 3: Cross multiply
    28,369.03x = 39,143.33 × 16,431.65
  4. Step 4: Simplify right side
    28,369.03x = 643,189,514.09
  5. Step 5: Solve for x
    x = 643,189,514.09/28,369.03
  6. Step 6: Final answer
    x = 22,672.24

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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.