Home / 18,912.30-28,368.45-14,246.70

Finding the Fourth Proportional to 18,912.30, 28,368.45 and 14,246.70

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Solution

The fourth proportional to 18,912.30, 28,368.45 and 14,246.70 is: 21,370.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,912.30 : 28,368.45 = 14,246.70 : x
  2. Step 2: Convert to fraction form
    18,912.30/28,368.45 = 14,246.70/x
  3. Step 3: Cross multiply
    18,912.30x = 28,368.45 × 14,246.70
  4. Step 4: Simplify right side
    18,912.30x = 404,156,796.62
  5. Step 5: Solve for x
    x = 404,156,796.62/18,912.30
  6. Step 6: Final answer
    x = 21,370.05

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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.