Home / 28,003.76-42,005.32-11,359.84

Finding the Fourth Proportional to 28,003.76, 42,005.32 and 11,359.84

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Solution

The fourth proportional to 28,003.76, 42,005.32 and 11,359.84 is: 17,039.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,003.76 : 42,005.32 = 11,359.84 : x
  2. Step 2: Convert to fraction form
    28,003.76/42,005.32 = 11,359.84/x
  3. Step 3: Cross multiply
    28,003.76x = 42,005.32 × 11,359.84
  4. Step 4: Simplify right side
    28,003.76x = 477,173,714.35
  5. Step 5: Solve for x
    x = 477,173,714.35/28,003.76
  6. Step 6: Final answer
    x = 17,039.63

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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.