Home / 28,826.69-39,781.13-16,081.03

Finding the Fourth Proportional to 28,826.69, 39,781.13 and 16,081.03

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Solution

The fourth proportional to 28,826.69, 39,781.13 and 16,081.03 is: 22,191.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,826.69 : 39,781.13 = 16,081.03 : x
  2. Step 2: Convert to fraction form
    28,826.69/39,781.13 = 16,081.03/x
  3. Step 3: Cross multiply
    28,826.69x = 39,781.13 × 16,081.03
  4. Step 4: Simplify right side
    28,826.69x = 639,721,514.29
  5. Step 5: Solve for x
    x = 639,721,514.29/28,826.69
  6. Step 6: Final answer
    x = 22,191.99

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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.