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Finding the Fourth Proportional to 28,418.22, 42,603.03 and 10,900.62

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Solution

The fourth proportional to 28,418.22, 42,603.03 and 10,900.62 is: 16,341.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,418.22 : 42,603.03 = 10,900.62 : x
  2. Step 2: Convert to fraction form
    28,418.22/42,603.03 = 10,900.62/x
  3. Step 3: Cross multiply
    28,418.22x = 42,603.03 × 10,900.62
  4. Step 4: Simplify right side
    28,418.22x = 464,399,440.88
  5. Step 5: Solve for x
    x = 464,399,440.88/28,418.22
  6. Step 6: Final answer
    x = 16,341.61

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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.