Home / 30,145.01-41,512.37-28,219.55

Finding the Fourth Proportional to 30,145.01, 41,512.37 and 28,219.55

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Solution

The fourth proportional to 30,145.01, 41,512.37 and 28,219.55 is: 38,860.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,145.01 : 41,512.37 = 28,219.55 : x
  2. Step 2: Convert to fraction form
    30,145.01/41,512.37 = 28,219.55/x
  3. Step 3: Cross multiply
    30,145.01x = 41,512.37 × 28,219.55
  4. Step 4: Simplify right side
    30,145.01x = 1,171,460,052.17
  5. Step 5: Solve for x
    x = 1,171,460,052.17/30,145.01
  6. Step 6: Final answer
    x = 38,860.83

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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.