Home / 30,211.35-45,317.03-12,676.47

Finding the Fourth Proportional to 30,211.35, 45,317.03 and 12,676.47

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Solution

The fourth proportional to 30,211.35, 45,317.03 and 12,676.47 is: 19,014.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,211.35 : 45,317.03 = 12,676.47 : x
  2. Step 2: Convert to fraction form
    30,211.35/45,317.03 = 12,676.47/x
  3. Step 3: Cross multiply
    30,211.35x = 45,317.03 × 12,676.47
  4. Step 4: Simplify right side
    30,211.35x = 574,459,907.90
  5. Step 5: Solve for x
    x = 574,459,907.90/30,211.35
  6. Step 6: Final answer
    x = 19,014.71

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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.