Home / 28,296.63-42,453.44-11,420.96

Finding the Fourth Proportional to 28,296.63, 42,453.44 and 11,420.96

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Solution

The fourth proportional to 28,296.63, 42,453.44 and 11,420.96 is: 17,134.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,296.63 : 42,453.44 = 11,420.96 : x
  2. Step 2: Convert to fraction form
    28,296.63/42,453.44 = 11,420.96/x
  3. Step 3: Cross multiply
    28,296.63x = 42,453.44 × 11,420.96
  4. Step 4: Simplify right side
    28,296.63x = 484,859,144.18
  5. Step 5: Solve for x
    x = 484,859,144.18/28,296.63
  6. Step 6: Final answer
    x = 17,134.87

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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.