Home / 30,105.70-45,124.37-10,368.02

Finding the Fourth Proportional to 30,105.70, 45,124.37 and 10,368.02

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Solution

The fourth proportional to 30,105.70, 45,124.37 and 10,368.02 is: 15,540.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,105.70 : 45,124.37 = 10,368.02 : x
  2. Step 2: Convert to fraction form
    30,105.70/45,124.37 = 10,368.02/x
  3. Step 3: Cross multiply
    30,105.70x = 45,124.37 × 10,368.02
  4. Step 4: Simplify right side
    30,105.70x = 467,850,370.65
  5. Step 5: Solve for x
    x = 467,850,370.65/30,105.70
  6. Step 6: Final answer
    x = 15,540.26

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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.