Home / 28,242.96-42,354.24-8,515.44

Finding the Fourth Proportional to 28,242.96, 42,354.24 and 8,515.44

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Solution

The fourth proportional to 28,242.96, 42,354.24 and 8,515.44 is: 12,770.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,242.96 : 42,354.24 = 8,515.44 : x
  2. Step 2: Convert to fraction form
    28,242.96/42,354.24 = 8,515.44/x
  3. Step 3: Cross multiply
    28,242.96x = 42,354.24 × 8,515.44
  4. Step 4: Simplify right side
    28,242.96x = 360,664,989.47
  5. Step 5: Solve for x
    x = 360,664,989.47/28,242.96
  6. Step 6: Final answer
    x = 12,770.08

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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.