Home / 28,171.40-42,227.58-9,446.84

Finding the Fourth Proportional to 28,171.40, 42,227.58 and 9,446.84

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Solution

The fourth proportional to 28,171.40, 42,227.58 and 9,446.84 is: 14,160.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,171.40 : 42,227.58 = 9,446.84 : x
  2. Step 2: Convert to fraction form
    28,171.40/42,227.58 = 9,446.84/x
  3. Step 3: Cross multiply
    28,171.40x = 42,227.58 × 9,446.84
  4. Step 4: Simplify right side
    28,171.40x = 398,917,191.85
  5. Step 5: Solve for x
    x = 398,917,191.85/28,171.40
  6. Step 6: Final answer
    x = 14,160.36

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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.