Home / 42,639.36-63,951.84-11,467.68

Finding the Fourth Proportional to 42,639.36, 63,951.84 and 11,467.68

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Solution

The fourth proportional to 42,639.36, 63,951.84 and 11,467.68 is: 17,199.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,639.36 : 63,951.84 = 11,467.68 : x
  2. Step 2: Convert to fraction form
    42,639.36/63,951.84 = 11,467.68/x
  3. Step 3: Cross multiply
    42,639.36x = 63,951.84 × 11,467.68
  4. Step 4: Simplify right side
    42,639.36x = 733,379,236.53
  5. Step 5: Solve for x
    x = 733,379,236.53/42,639.36
  6. Step 6: Final answer
    x = 17,199.58

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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.