Home / 30,182.01-45,273.12-12,408.09

Finding the Fourth Proportional to 30,182.01, 45,273.12 and 12,408.09

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Solution

The fourth proportional to 30,182.01, 45,273.12 and 12,408.09 is: 18,612.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,182.01 : 45,273.12 = 12,408.09 : x
  2. Step 2: Convert to fraction form
    30,182.01/45,273.12 = 12,408.09/x
  3. Step 3: Cross multiply
    30,182.01x = 45,273.12 × 12,408.09
  4. Step 4: Simplify right side
    30,182.01x = 561,752,947.54
  5. Step 5: Solve for x
    x = 561,752,947.54/30,182.01
  6. Step 6: Final answer
    x = 18,612.18

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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.