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Finding the Fourth Proportional to 30,235.80, 45,353.80 and 9,176.02

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Solution

The fourth proportional to 30,235.80, 45,353.80 and 9,176.02 is: 13,764.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,235.80 : 45,353.80 = 9,176.02 : x
  2. Step 2: Convert to fraction form
    30,235.80/45,353.80 = 9,176.02/x
  3. Step 3: Cross multiply
    30,235.80x = 45,353.80 × 9,176.02
  4. Step 4: Simplify right side
    30,235.80x = 416,167,375.88
  5. Step 5: Solve for x
    x = 416,167,375.88/30,235.80
  6. Step 6: Final answer
    x = 13,764.06

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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.