Home / 30,185.55-45,276.30-7,998.45

Finding the Fourth Proportional to 30,185.55, 45,276.30 and 7,998.45

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Solution

The fourth proportional to 30,185.55, 45,276.30 and 7,998.45 is: 11,997.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,185.55 : 45,276.30 = 7,998.45 : x
  2. Step 2: Convert to fraction form
    30,185.55/45,276.30 = 7,998.45/x
  3. Step 3: Cross multiply
    30,185.55x = 45,276.30 × 7,998.45
  4. Step 4: Simplify right side
    30,185.55x = 362,140,221.74
  5. Step 5: Solve for x
    x = 362,140,221.74/30,185.55
  6. Step 6: Final answer
    x = 11,997.14

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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.