Home / 30,212.85-45,319.28-12,677.97

Finding the Fourth Proportional to 30,212.85, 45,319.28 and 12,677.97

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Solution

The fourth proportional to 30,212.85, 45,319.28 and 12,677.97 is: 19,016.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,212.85 : 45,319.28 = 12,677.97 : x
  2. Step 2: Convert to fraction form
    30,212.85/45,319.28 = 12,677.97/x
  3. Step 3: Cross multiply
    30,212.85x = 45,319.28 × 12,677.97
  4. Step 4: Simplify right side
    30,212.85x = 574,556,408.87
  5. Step 5: Solve for x
    x = 574,556,408.87/30,212.85
  6. Step 6: Final answer
    x = 19,016.96

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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.