Home / 28,917.30-43,354.35-12,263.70

Finding the Fourth Proportional to 28,917.30, 43,354.35 and 12,263.70

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Solution

The fourth proportional to 28,917.30, 43,354.35 and 12,263.70 is: 18,386.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,917.30 : 43,354.35 = 12,263.70 : x
  2. Step 2: Convert to fraction form
    28,917.30/43,354.35 = 12,263.70/x
  3. Step 3: Cross multiply
    28,917.30x = 43,354.35 × 12,263.70
  4. Step 4: Simplify right side
    28,917.30x = 531,684,742.10
  5. Step 5: Solve for x
    x = 531,684,742.10/28,917.30
  6. Step 6: Final answer
    x = 18,386.39

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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.