Home / 28,049.08-42,081.58-11,421.04

Finding the Fourth Proportional to 28,049.08, 42,081.58 and 11,421.04

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Solution

The fourth proportional to 28,049.08, 42,081.58 and 11,421.04 is: 17,134.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,049.08 : 42,081.58 = 11,421.04 : x
  2. Step 2: Convert to fraction form
    28,049.08/42,081.58 = 11,421.04/x
  3. Step 3: Cross multiply
    28,049.08x = 42,081.58 × 11,421.04
  4. Step 4: Simplify right side
    28,049.08x = 480,615,408.44
  5. Step 5: Solve for x
    x = 480,615,408.44/28,049.08
  6. Step 6: Final answer
    x = 17,134.80

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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.