Home / 30,003.89-45,005.69-28,176.94

Finding the Fourth Proportional to 30,003.89, 45,005.69 and 28,176.94

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Solution

The fourth proportional to 30,003.89, 45,005.69 and 28,176.94 is: 42,265.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,003.89 : 45,005.69 = 28,176.94 : x
  2. Step 2: Convert to fraction form
    30,003.89/45,005.69 = 28,176.94/x
  3. Step 3: Cross multiply
    30,003.89x = 45,005.69 × 28,176.94
  4. Step 4: Simplify right side
    30,003.89x = 1,268,122,626.79
  5. Step 5: Solve for x
    x = 1,268,122,626.79/30,003.89
  6. Step 6: Final answer
    x = 42,265.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.