Home / 31,107.78-46,617.93-13,540.77

Finding the Fourth Proportional to 31,107.78, 46,617.93 and 13,540.77

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Solution

The fourth proportional to 31,107.78, 46,617.93 and 13,540.77 is: 20,292.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,107.78 : 46,617.93 = 13,540.77 : x
  2. Step 2: Convert to fraction form
    31,107.78/46,617.93 = 13,540.77/x
  3. Step 3: Cross multiply
    31,107.78x = 46,617.93 × 13,540.77
  4. Step 4: Simplify right side
    31,107.78x = 631,242,668.01
  5. Step 5: Solve for x
    x = 631,242,668.01/31,107.78
  6. Step 6: Final answer
    x = 20,292.12

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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.