Home / 30,964.80-46,432.55-11,998.31

Finding the Fourth Proportional to 30,964.80, 46,432.55 and 11,998.31

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Solution

The fourth proportional to 30,964.80, 46,432.55 and 11,998.31 is: 17,991.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,964.80 : 46,432.55 = 11,998.31 : x
  2. Step 2: Convert to fraction form
    30,964.80/46,432.55 = 11,998.31/x
  3. Step 3: Cross multiply
    30,964.80x = 46,432.55 × 11,998.31
  4. Step 4: Simplify right side
    30,964.80x = 557,112,128.99
  5. Step 5: Solve for x
    x = 557,112,128.99/30,964.80
  6. Step 6: Final answer
    x = 17,991.79

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1.5x scale

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.