Home / 31,309.26-46,969.34-13,778.62

Finding the Fourth Proportional to 31,309.26, 46,969.34 and 13,778.62

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Solution

The fourth proportional to 31,309.26, 46,969.34 and 13,778.62 is: 20,670.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,309.26 : 46,969.34 = 13,778.62 : x
  2. Step 2: Convert to fraction form
    31,309.26/46,969.34 = 13,778.62/x
  3. Step 3: Cross multiply
    31,309.26x = 46,969.34 × 13,778.62
  4. Step 4: Simplify right side
    31,309.26x = 647,172,618.62
  5. Step 5: Solve for x
    x = 647,172,618.62/31,309.26
  6. Step 6: Final answer
    x = 20,670.33

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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.