Home / 28,128.76-42,225.72-16,450.36

Finding the Fourth Proportional to 28,128.76, 42,225.72 and 16,450.36

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Solution

The fourth proportional to 28,128.76, 42,225.72 and 16,450.36 is: 24,694.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,128.76 : 42,225.72 = 16,450.36 : x
  2. Step 2: Convert to fraction form
    28,128.76/42,225.72 = 16,450.36/x
  3. Step 3: Cross multiply
    28,128.76x = 42,225.72 × 16,450.36
  4. Step 4: Simplify right side
    28,128.76x = 694,628,295.26
  5. Step 5: Solve for x
    x = 694,628,295.26/28,128.76
  6. Step 6: Final answer
    x = 24,694.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.