Home / 28,677.90-43,018.11-8,956.83

Finding the Fourth Proportional to 28,677.90, 43,018.11 and 8,956.83

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Solution

The fourth proportional to 28,677.90, 43,018.11 and 8,956.83 is: 13,435.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,677.90 : 43,018.11 = 8,956.83 : x
  2. Step 2: Convert to fraction form
    28,677.90/43,018.11 = 8,956.83/x
  3. Step 3: Cross multiply
    28,677.90x = 43,018.11 × 8,956.83
  4. Step 4: Simplify right side
    28,677.90x = 385,305,898.19
  5. Step 5: Solve for x
    x = 385,305,898.19/28,677.90
  6. Step 6: Final answer
    x = 13,435.64

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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.