Home / 30,182.13-45,240.33-12,631.44

Finding the Fourth Proportional to 30,182.13, 45,240.33 and 12,631.44

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Solution

The fourth proportional to 30,182.13, 45,240.33 and 12,631.44 is: 18,933.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,182.13 : 45,240.33 = 12,631.44 : x
  2. Step 2: Convert to fraction form
    30,182.13/45,240.33 = 12,631.44/x
  3. Step 3: Cross multiply
    30,182.13x = 45,240.33 × 12,631.44
  4. Step 4: Simplify right side
    30,182.13x = 571,450,513.98
  5. Step 5: Solve for x
    x = 571,450,513.98/30,182.13
  6. Step 6: Final answer
    x = 18,933.41

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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.