Home / 28,450.24-42,672.12-13,453.96

Finding the Fourth Proportional to 28,450.24, 42,672.12 and 13,453.96

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Solution

The fourth proportional to 28,450.24, 42,672.12 and 13,453.96 is: 20,179.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,450.24 : 42,672.12 = 13,453.96 : x
  2. Step 2: Convert to fraction form
    28,450.24/42,672.12 = 13,453.96/x
  3. Step 3: Cross multiply
    28,450.24x = 42,672.12 × 13,453.96
  4. Step 4: Simplify right side
    28,450.24x = 574,108,995.60
  5. Step 5: Solve for x
    x = 574,108,995.60/28,450.24
  6. Step 6: Final answer
    x = 20,179.41

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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.