Home / 31,115.16-46,683.87-13,338.36

Finding the Fourth Proportional to 31,115.16, 46,683.87 and 13,338.36

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Solution

The fourth proportional to 31,115.16, 46,683.87 and 13,338.36 is: 20,012.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,115.16 : 46,683.87 = 13,338.36 : x
  2. Step 2: Convert to fraction form
    31,115.16/46,683.87 = 13,338.36/x
  3. Step 3: Cross multiply
    31,115.16x = 46,683.87 × 13,338.36
  4. Step 4: Simplify right side
    31,115.16x = 622,686,264.25
  5. Step 5: Solve for x
    x = 622,686,264.25/31,115.16
  6. Step 6: Final answer
    x = 20,012.31

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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.