Home / 30,169.32-45,243.48-12,394.92

Finding the Fourth Proportional to 30,169.32, 45,243.48 and 12,394.92

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Solution

The fourth proportional to 30,169.32, 45,243.48 and 12,394.92 is: 18,588.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,169.32 : 45,243.48 = 12,394.92 : x
  2. Step 2: Convert to fraction form
    30,169.32/45,243.48 = 12,394.92/x
  3. Step 3: Cross multiply
    30,169.32x = 45,243.48 × 12,394.92
  4. Step 4: Simplify right side
    30,169.32x = 560,789,315.12
  5. Step 5: Solve for x
    x = 560,789,315.12/30,169.32
  6. Step 6: Final answer
    x = 18,588.07

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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.