Home / 28,636.30-42,967.26-11,107.54

Finding the Fourth Proportional to 28,636.30, 42,967.26 and 11,107.54

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Solution

The fourth proportional to 28,636.30, 42,967.26 and 11,107.54 is: 16,666.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,636.30 : 42,967.26 = 11,107.54 : x
  2. Step 2: Convert to fraction form
    28,636.30/42,967.26 = 11,107.54/x
  3. Step 3: Cross multiply
    28,636.30x = 42,967.26 × 11,107.54
  4. Step 4: Simplify right side
    28,636.30x = 477,260,559.14
  5. Step 5: Solve for x
    x = 477,260,559.14/28,636.30
  6. Step 6: Final answer
    x = 16,666.28

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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.