Home / 28,436-39,236.82-16,496.60

Finding the Fourth Proportional to 28,436, 39,236.82 and 16,496.60

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Solution

The fourth proportional to 28,436, 39,236.82 and 16,496.60 is: 22,762.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,436 : 39,236.82 = 16,496.60 : x
  2. Step 2: Convert to fraction form
    28,436/39,236.82 = 16,496.60/x
  3. Step 3: Cross multiply
    28,436x = 39,236.82 × 16,496.60
  4. Step 4: Simplify right side
    28,436x = 647,274,124.81
  5. Step 5: Solve for x
    x = 647,274,124.81/28,436
  6. Step 6: Final answer
    x = 22,762.49

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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.