Home / 28,825.40-39,778.94-16,078.58

Finding the Fourth Proportional to 28,825.40, 39,778.94 and 16,078.58

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Solution

The fourth proportional to 28,825.40, 39,778.94 and 16,078.58 is: 22,188.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,825.40 : 39,778.94 = 16,078.58 : x
  2. Step 2: Convert to fraction form
    28,825.40/39,778.94 = 16,078.58/x
  3. Step 3: Cross multiply
    28,825.40x = 39,778.94 × 16,078.58
  4. Step 4: Simplify right side
    28,825.40x = 639,588,869.11
  5. Step 5: Solve for x
    x = 639,588,869.11/28,825.40
  6. Step 6: Final answer
    x = 22,188.38

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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.