Home / 30,021.02-45,029.88-15,229.54

Finding the Fourth Proportional to 30,021.02, 45,029.88 and 15,229.54

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Solution

The fourth proportional to 30,021.02, 45,029.88 and 15,229.54 is: 22,843.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,021.02 : 45,029.88 = 15,229.54 : x
  2. Step 2: Convert to fraction form
    30,021.02/45,029.88 = 15,229.54/x
  3. Step 3: Cross multiply
    30,021.02x = 45,029.88 × 15,229.54
  4. Step 4: Simplify right side
    30,021.02x = 685,784,358.66
  5. Step 5: Solve for x
    x = 685,784,358.66/30,021.02
  6. Step 6: Final answer
    x = 22,843.47

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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.