Home / 28,910.81-39,897.18-16,974.34

Finding the Fourth Proportional to 28,910.81, 39,897.18 and 16,974.34

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Solution

The fourth proportional to 28,910.81, 39,897.18 and 16,974.34 is: 23,424.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,910.81 : 39,897.18 = 16,974.34 : x
  2. Step 2: Convert to fraction form
    28,910.81/39,897.18 = 16,974.34/x
  3. Step 3: Cross multiply
    28,910.81x = 39,897.18 × 16,974.34
  4. Step 4: Simplify right side
    28,910.81x = 677,228,198.62
  5. Step 5: Solve for x
    x = 677,228,198.62/28,910.81
  6. Step 6: Final answer
    x = 23,424.74

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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.