Home / 30,052.22-45,078.14-12,279.12

Finding the Fourth Proportional to 30,052.22, 45,078.14 and 12,279.12

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Solution

The fourth proportional to 30,052.22, 45,078.14 and 12,279.12 is: 18,418.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,052.22 : 45,078.14 = 12,279.12 : x
  2. Step 2: Convert to fraction form
    30,052.22/45,078.14 = 12,279.12/x
  3. Step 3: Cross multiply
    30,052.22x = 45,078.14 × 12,279.12
  4. Step 4: Simplify right side
    30,052.22x = 553,519,890.44
  5. Step 5: Solve for x
    x = 553,519,890.44/30,052.22
  6. Step 6: Final answer
    x = 18,418.60

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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.