Home / 30,144.30-45,225.86-18,149.60

Finding the Fourth Proportional to 30,144.30, 45,225.86 and 18,149.60

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Solution

The fourth proportional to 30,144.30, 45,225.86 and 18,149.60 is: 27,230.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,144.30 : 45,225.86 = 18,149.60 : x
  2. Step 2: Convert to fraction form
    30,144.30/45,225.86 = 18,149.60/x
  3. Step 3: Cross multiply
    30,144.30x = 45,225.86 × 18,149.60
  4. Step 4: Simplify right side
    30,144.30x = 820,830,951.78
  5. Step 5: Solve for x
    x = 820,830,951.78/30,144.30
  6. Step 6: Final answer
    x = 27,230.06

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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.