Home / 30,614.22-45,921.30-8,427.72

Finding the Fourth Proportional to 30,614.22, 45,921.30 and 8,427.72

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Solution

The fourth proportional to 30,614.22, 45,921.30 and 8,427.72 is: 12,641.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,614.22 : 45,921.30 = 8,427.72 : x
  2. Step 2: Convert to fraction form
    30,614.22/45,921.30 = 8,427.72/x
  3. Step 3: Cross multiply
    30,614.22x = 45,921.30 × 8,427.72
  4. Step 4: Simplify right side
    30,614.22x = 387,011,858.44
  5. Step 5: Solve for x
    x = 387,011,858.44/30,614.22
  6. Step 6: Final answer
    x = 12,641.57

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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.