Home / 30,414.12-45,606.60-12,874.38

Finding the Fourth Proportional to 30,414.12, 45,606.60 and 12,874.38

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Solution

The fourth proportional to 30,414.12, 45,606.60 and 12,874.38 is: 19,305.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,414.12 : 45,606.60 = 12,874.38 : x
  2. Step 2: Convert to fraction form
    30,414.12/45,606.60 = 12,874.38/x
  3. Step 3: Cross multiply
    30,414.12x = 45,606.60 × 12,874.38
  4. Step 4: Simplify right side
    30,414.12x = 587,156,698.91
  5. Step 5: Solve for x
    x = 587,156,698.91/30,414.12
  6. Step 6: Final answer
    x = 19,305.40

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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.