Home / 31,021.80-46,532.20-7,648.24

Finding the Fourth Proportional to 31,021.80, 46,532.20 and 7,648.24

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Solution

The fourth proportional to 31,021.80, 46,532.20 and 7,648.24 is: 11,472.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,021.80 : 46,532.20 = 7,648.24 : x
  2. Step 2: Convert to fraction form
    31,021.80/46,532.20 = 7,648.24/x
  3. Step 3: Cross multiply
    31,021.80x = 46,532.20 × 7,648.24
  4. Step 4: Simplify right side
    31,021.80x = 355,889,433.33
  5. Step 5: Solve for x
    x = 355,889,433.33/31,021.80
  6. Step 6: Final answer
    x = 11,472.24

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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.