Home / 30,090.96-45,112.14-12,573.90

Finding the Fourth Proportional to 30,090.96, 45,112.14 and 12,573.90

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Solution

The fourth proportional to 30,090.96, 45,112.14 and 12,573.90 is: 18,850.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,090.96 : 45,112.14 = 12,573.90 : x
  2. Step 2: Convert to fraction form
    30,090.96/45,112.14 = 12,573.90/x
  3. Step 3: Cross multiply
    30,090.96x = 45,112.14 × 12,573.90
  4. Step 4: Simplify right side
    30,090.96x = 567,235,537.15
  5. Step 5: Solve for x
    x = 567,235,537.15/30,090.96
  6. Step 6: Final answer
    x = 18,850.70

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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.