Home / 31,021.27-46,513.11-13,921.02

Finding the Fourth Proportional to 31,021.27, 46,513.11 and 13,921.02

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Solution

The fourth proportional to 31,021.27, 46,513.11 and 13,921.02 is: 20,873.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,021.27 : 46,513.11 = 13,921.02 : x
  2. Step 2: Convert to fraction form
    31,021.27/46,513.11 = 13,921.02/x
  3. Step 3: Cross multiply
    31,021.27x = 46,513.11 × 13,921.02
  4. Step 4: Simplify right side
    31,021.27x = 647,509,934.57
  5. Step 5: Solve for x
    x = 647,509,934.57/31,021.27
  6. Step 6: Final answer
    x = 20,873.10

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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.