Home / 30,057.48-41,448.60-19,987.56

Finding the Fourth Proportional to 30,057.48, 41,448.60 and 19,987.56

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Solution

The fourth proportional to 30,057.48, 41,448.60 and 19,987.56 is: 27,562.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,057.48 : 41,448.60 = 19,987.56 : x
  2. Step 2: Convert to fraction form
    30,057.48/41,448.60 = 19,987.56/x
  3. Step 3: Cross multiply
    30,057.48x = 41,448.60 × 19,987.56
  4. Step 4: Simplify right side
    30,057.48x = 828,456,379.42
  5. Step 5: Solve for x
    x = 828,456,379.42/30,057.48
  6. Step 6: Final answer
    x = 27,562.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.