Home / 31,278.37-46,918.33-9,091.94

Finding the Fourth Proportional to 31,278.37, 46,918.33 and 9,091.94

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Solution

The fourth proportional to 31,278.37, 46,918.33 and 9,091.94 is: 13,638.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,278.37 : 46,918.33 = 9,091.94 : x
  2. Step 2: Convert to fraction form
    31,278.37/46,918.33 = 9,091.94/x
  3. Step 3: Cross multiply
    31,278.37x = 46,918.33 × 9,091.94
  4. Step 4: Simplify right side
    31,278.37x = 426,578,641.26
  5. Step 5: Solve for x
    x = 426,578,641.26/31,278.37
  6. Step 6: Final answer
    x = 13,638.14

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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.