Home / 28,333.33-39,101.65-16,400.81

Finding the Fourth Proportional to 28,333.33, 39,101.65 and 16,400.81

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Solution

The fourth proportional to 28,333.33, 39,101.65 and 16,400.81 is: 22,634.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,333.33 : 39,101.65 = 16,400.81 : x
  2. Step 2: Convert to fraction form
    28,333.33/39,101.65 = 16,400.81/x
  3. Step 3: Cross multiply
    28,333.33x = 39,101.65 × 16,400.81
  4. Step 4: Simplify right side
    28,333.33x = 641,298,789.09
  5. Step 5: Solve for x
    x = 641,298,789.09/28,333.33
  6. Step 6: Final answer
    x = 22,634.08

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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.