Home / 28,871.91-39,832.05-16,930.89

Finding the Fourth Proportional to 28,871.91, 39,832.05 and 16,930.89

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Solution

The fourth proportional to 28,871.91, 39,832.05 and 16,930.89 is: 23,358.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,871.91 : 39,832.05 = 16,930.89 : x
  2. Step 2: Convert to fraction form
    28,871.91/39,832.05 = 16,930.89/x
  3. Step 3: Cross multiply
    28,871.91x = 39,832.05 × 16,930.89
  4. Step 4: Simplify right side
    28,871.91x = 674,392,120.52
  5. Step 5: Solve for x
    x = 674,392,120.52/28,871.91
  6. Step 6: Final answer
    x = 23,358.07

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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.