Home / 30,478.48-45,728.10-16,439.82

Finding the Fourth Proportional to 30,478.48, 45,728.10 and 16,439.82

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Solution

The fourth proportional to 30,478.48, 45,728.10 and 16,439.82 is: 24,665.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,478.48 : 45,728.10 = 16,439.82 : x
  2. Step 2: Convert to fraction form
    30,478.48/45,728.10 = 16,439.82/x
  3. Step 3: Cross multiply
    30,478.48x = 45,728.10 × 16,439.82
  4. Step 4: Simplify right side
    30,478.48x = 751,761,732.94
  5. Step 5: Solve for x
    x = 751,761,732.94/30,478.48
  6. Step 6: Final answer
    x = 24,665.33

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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.