Home / 31,108.14-46,661.81-7,734.78

Finding the Fourth Proportional to 31,108.14, 46,661.81 and 7,734.78

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Solution

The fourth proportional to 31,108.14, 46,661.81 and 7,734.78 is: 11,602.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,108.14 : 46,661.81 = 7,734.78 : x
  2. Step 2: Convert to fraction form
    31,108.14/46,661.81 = 7,734.78/x
  3. Step 3: Cross multiply
    31,108.14x = 46,661.81 × 7,734.78
  4. Step 4: Simplify right side
    31,108.14x = 360,918,796.08
  5. Step 5: Solve for x
    x = 360,918,796.08/31,108.14
  6. Step 6: Final answer
    x = 11,602.07

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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.