Home / 42,255.68-63,378.72-11,093.36

Finding the Fourth Proportional to 42,255.68, 63,378.72 and 11,093.36

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Solution

The fourth proportional to 42,255.68, 63,378.72 and 11,093.36 is: 16,638.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,255.68 : 63,378.72 = 11,093.36 : x
  2. Step 2: Convert to fraction form
    42,255.68/63,378.72 = 11,093.36/x
  3. Step 3: Cross multiply
    42,255.68x = 63,378.72 × 11,093.36
  4. Step 4: Simplify right side
    42,255.68x = 703,082,957.30
  5. Step 5: Solve for x
    x = 703,082,957.30/42,255.68
  6. Step 6: Final answer
    x = 16,638.78

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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.