Home / 28,826.83-39,781.08-16,079.68

Finding the Fourth Proportional to 28,826.83, 39,781.08 and 16,079.68

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Solution

The fourth proportional to 28,826.83, 39,781.08 and 16,079.68 is: 22,189.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,826.83 : 39,781.08 = 16,079.68 : x
  2. Step 2: Convert to fraction form
    28,826.83/39,781.08 = 16,079.68/x
  3. Step 3: Cross multiply
    28,826.83x = 39,781.08 × 16,079.68
  4. Step 4: Simplify right side
    28,826.83x = 639,667,036.45
  5. Step 5: Solve for x
    x = 639,667,036.45/28,826.83
  6. Step 6: Final answer
    x = 22,189.99

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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.