Home / 30,708.47-46,061.25-11,991.92

Finding the Fourth Proportional to 30,708.47, 46,061.25 and 11,991.92

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Solution

The fourth proportional to 30,708.47, 46,061.25 and 11,991.92 is: 17,987.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,708.47 : 46,061.25 = 11,991.92 : x
  2. Step 2: Convert to fraction form
    30,708.47/46,061.25 = 11,991.92/x
  3. Step 3: Cross multiply
    30,708.47x = 46,061.25 × 11,991.92
  4. Step 4: Simplify right side
    30,708.47x = 552,362,594.79
  5. Step 5: Solve for x
    x = 552,362,594.79/30,708.47
  6. Step 6: Final answer
    x = 17,987.31

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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.