Home / 31,079.20-46,564.80-28,033.60

Finding the Fourth Proportional to 31,079.20, 46,564.80 and 28,033.60

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Solution

The fourth proportional to 31,079.20, 46,564.80 and 28,033.60 is: 42,001.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,079.20 : 46,564.80 = 28,033.60 : x
  2. Step 2: Convert to fraction form
    31,079.20/46,564.80 = 28,033.60/x
  3. Step 3: Cross multiply
    31,079.20x = 46,564.80 × 28,033.60
  4. Step 4: Simplify right side
    31,079.20x = 1,305,378,977.28
  5. Step 5: Solve for x
    x = 1,305,378,977.28/31,079.20
  6. Step 6: Final answer
    x = 42,001.69

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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.