Home / 28,338.69-39,104.97-16,402.77

Finding the Fourth Proportional to 28,338.69, 39,104.97 and 16,402.77

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Solution

The fourth proportional to 28,338.69, 39,104.97 and 16,402.77 is: 22,634.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,338.69 : 39,104.97 = 16,402.77 : x
  2. Step 2: Convert to fraction form
    28,338.69/39,104.97 = 16,402.77/x
  3. Step 3: Cross multiply
    28,338.69x = 39,104.97 × 16,402.77
  4. Step 4: Simplify right side
    28,338.69x = 641,429,828.77
  5. Step 5: Solve for x
    x = 641,429,828.77/28,338.69
  6. Step 6: Final answer
    x = 22,634.42

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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.