Home / 28,808.16-39,739.11-16,869.16

Finding the Fourth Proportional to 28,808.16, 39,739.11 and 16,869.16

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Solution

The fourth proportional to 28,808.16, 39,739.11 and 16,869.16 is: 23,269.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,808.16 : 39,739.11 = 16,869.16 : x
  2. Step 2: Convert to fraction form
    28,808.16/39,739.11 = 16,869.16/x
  3. Step 3: Cross multiply
    28,808.16x = 39,739.11 × 16,869.16
  4. Step 4: Simplify right side
    28,808.16x = 670,365,391.26
  5. Step 5: Solve for x
    x = 670,365,391.26/28,808.16
  6. Step 6: Final answer
    x = 23,269.99

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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.