Home / 30,012.72-41,419.52-19,925.38

Finding the Fourth Proportional to 30,012.72, 41,419.52 and 19,925.38

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Solution

The fourth proportional to 30,012.72, 41,419.52 and 19,925.38 is: 27,498.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,012.72 : 41,419.52 = 19,925.38 : x
  2. Step 2: Convert to fraction form
    30,012.72/41,419.52 = 19,925.38/x
  3. Step 3: Cross multiply
    30,012.72x = 41,419.52 × 19,925.38
  4. Step 4: Simplify right side
    30,012.72x = 825,299,675.42
  5. Step 5: Solve for x
    x = 825,299,675.42/30,012.72
  6. Step 6: Final answer
    x = 27,498.33

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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.