Home / 31,289.45-46,940.29-13,759.22

Finding the Fourth Proportional to 31,289.45, 46,940.29 and 13,759.22

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Solution

The fourth proportional to 31,289.45, 46,940.29 and 13,759.22 is: 20,641.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,289.45 : 46,940.29 = 13,759.22 : x
  2. Step 2: Convert to fraction form
    31,289.45/46,940.29 = 13,759.22/x
  3. Step 3: Cross multiply
    31,289.45x = 46,940.29 × 13,759.22
  4. Step 4: Simplify right side
    31,289.45x = 645,861,859.93
  5. Step 5: Solve for x
    x = 645,861,859.93/31,289.45
  6. Step 6: Final answer
    x = 20,641.52

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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.