Home / 30,282.20-41,790.42-18,948.08

Finding the Fourth Proportional to 30,282.20, 41,790.42 and 18,948.08

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Solution

The fourth proportional to 30,282.20, 41,790.42 and 18,948.08 is: 26,148.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,282.20 : 41,790.42 = 18,948.08 : x
  2. Step 2: Convert to fraction form
    30,282.20/41,790.42 = 18,948.08/x
  3. Step 3: Cross multiply
    30,282.20x = 41,790.42 × 18,948.08
  4. Step 4: Simplify right side
    30,282.20x = 791,848,221.39
  5. Step 5: Solve for x
    x = 791,848,221.39/30,282.20
  6. Step 6: Final answer
    x = 26,148.97

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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.