Home / 28,817.56-43,215.94-12,178.88

Finding the Fourth Proportional to 28,817.56, 43,215.94 and 12,178.88

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Solution

The fourth proportional to 28,817.56, 43,215.94 and 12,178.88 is: 18,263.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,817.56 : 43,215.94 = 12,178.88 : x
  2. Step 2: Convert to fraction form
    28,817.56/43,215.94 = 12,178.88/x
  3. Step 3: Cross multiply
    28,817.56x = 43,215.94 × 12,178.88
  4. Step 4: Simplify right side
    28,817.56x = 526,321,470.37
  5. Step 5: Solve for x
    x = 526,321,470.37/28,817.56
  6. Step 6: Final answer
    x = 18,263.92

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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.