Home / 28,634.35-42,958.83-8,913.05

Finding the Fourth Proportional to 28,634.35, 42,958.83 and 8,913.05

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Solution

The fourth proportional to 28,634.35, 42,958.83 and 8,913.05 is: 13,371.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,634.35 : 42,958.83 = 8,913.05 : x
  2. Step 2: Convert to fraction form
    28,634.35/42,958.83 = 8,913.05/x
  3. Step 3: Cross multiply
    28,634.35x = 42,958.83 × 8,913.05
  4. Step 4: Simplify right side
    28,634.35x = 382,894,199.73
  5. Step 5: Solve for x
    x = 382,894,199.73/28,634.35
  6. Step 6: Final answer
    x = 13,371.85

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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.