Home / 19,309.12-28,933.44-15,412.48

Finding the Fourth Proportional to 19,309.12, 28,933.44 and 15,412.48

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Solution

The fourth proportional to 19,309.12, 28,933.44 and 15,412.48 is: 23,094.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,309.12 : 28,933.44 = 15,412.48 : x
  2. Step 2: Convert to fraction form
    19,309.12/28,933.44 = 15,412.48/x
  3. Step 3: Cross multiply
    19,309.12x = 28,933.44 × 15,412.48
  4. Step 4: Simplify right side
    19,309.12x = 445,936,065.33
  5. Step 5: Solve for x
    x = 445,936,065.33/19,309.12
  6. Step 6: Final answer
    x = 23,094.58

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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.