Home / 30,408.11-45,581.66-12,614.57

Finding the Fourth Proportional to 30,408.11, 45,581.66 and 12,614.57

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Solution

The fourth proportional to 30,408.11, 45,581.66 and 12,614.57 is: 18,909.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,408.11 : 45,581.66 = 12,614.57 : x
  2. Step 2: Convert to fraction form
    30,408.11/45,581.66 = 12,614.57/x
  3. Step 3: Cross multiply
    30,408.11x = 45,581.66 × 12,614.57
  4. Step 4: Simplify right side
    30,408.11x = 574,992,977.71
  5. Step 5: Solve for x
    x = 574,992,977.71/30,408.11
  6. Step 6: Final answer
    x = 18,909.20

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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.