Home / 28,272.12-42,408.18-7,494.84

Finding the Fourth Proportional to 28,272.12, 42,408.18 and 7,494.84

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Solution

The fourth proportional to 28,272.12, 42,408.18 and 7,494.84 is: 11,242.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,272.12 : 42,408.18 = 7,494.84 : x
  2. Step 2: Convert to fraction form
    28,272.12/42,408.18 = 7,494.84/x
  3. Step 3: Cross multiply
    28,272.12x = 42,408.18 × 7,494.84
  4. Step 4: Simplify right side
    28,272.12x = 317,842,523.79
  5. Step 5: Solve for x
    x = 317,842,523.79/28,272.12
  6. Step 6: Final answer
    x = 11,242.26

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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.