Home / 30,201.69-45,081.60-28,006.20

Finding the Fourth Proportional to 30,201.69, 45,081.60 and 28,006.20

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Solution

The fourth proportional to 30,201.69, 45,081.60 and 28,006.20 is: 41,804.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,201.69 : 45,081.60 = 28,006.20 : x
  2. Step 2: Convert to fraction form
    30,201.69/45,081.60 = 28,006.20/x
  3. Step 3: Cross multiply
    30,201.69x = 45,081.60 × 28,006.20
  4. Step 4: Simplify right side
    30,201.69x = 1,262,564,305.92
  5. Step 5: Solve for x
    x = 1,262,564,305.92/30,201.69
  6. Step 6: Final answer
    x = 41,804.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.