Home / 31,506.72-47,120.52-28,021.32

Finding the Fourth Proportional to 31,506.72, 47,120.52 and 28,021.32

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Solution

The fourth proportional to 31,506.72, 47,120.52 and 28,021.32 is: 41,907.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,506.72 : 47,120.52 = 28,021.32 : x
  2. Step 2: Convert to fraction form
    31,506.72/47,120.52 = 28,021.32/x
  3. Step 3: Cross multiply
    31,506.72x = 47,120.52 × 28,021.32
  4. Step 4: Simplify right side
    31,506.72x = 1,320,379,169.49
  5. Step 5: Solve for x
    x = 1,320,379,169.49/31,506.72
  6. Step 6: Final answer
    x = 41,907.86

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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.