Home / 28,394.67-39,182.36-16,458.78

Finding the Fourth Proportional to 28,394.67, 39,182.36 and 16,458.78

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Solution

The fourth proportional to 28,394.67, 39,182.36 and 16,458.78 is: 22,711.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,394.67 : 39,182.36 = 16,458.78 : x
  2. Step 2: Convert to fraction form
    28,394.67/39,182.36 = 16,458.78/x
  3. Step 3: Cross multiply
    28,394.67x = 39,182.36 × 16,458.78
  4. Step 4: Simplify right side
    28,394.67x = 644,893,843.12
  5. Step 5: Solve for x
    x = 644,893,843.12/28,394.67
  6. Step 6: Final answer
    x = 22,711.79

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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.