Home / 30,020.74-41,430.58-19,933.38

Finding the Fourth Proportional to 30,020.74, 41,430.58 and 19,933.38

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Solution

The fourth proportional to 30,020.74, 41,430.58 and 19,933.38 is: 27,509.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,020.74 : 41,430.58 = 19,933.38 : x
  2. Step 2: Convert to fraction form
    30,020.74/41,430.58 = 19,933.38/x
  3. Step 3: Cross multiply
    30,020.74x = 41,430.58 × 19,933.38
  4. Step 4: Simplify right side
    30,020.74x = 825,851,494.76
  5. Step 5: Solve for x
    x = 825,851,494.76/30,020.74
  6. Step 6: Final answer
    x = 27,509.37

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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.