Home / 30,363.06-45,539.10-8,171.31

Finding the Fourth Proportional to 30,363.06, 45,539.10 and 8,171.31

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Solution

The fourth proportional to 30,363.06, 45,539.10 and 8,171.31 is: 12,255.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,363.06 : 45,539.10 = 8,171.31 : x
  2. Step 2: Convert to fraction form
    30,363.06/45,539.10 = 8,171.31/x
  3. Step 3: Cross multiply
    30,363.06x = 45,539.10 × 8,171.31
  4. Step 4: Simplify right side
    30,363.06x = 372,114,103.22
  5. Step 5: Solve for x
    x = 372,114,103.22/30,363.06
  6. Step 6: Final answer
    x = 12,255.49

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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.