Home / 28,709.63-43,057.45-12,069.87

Finding the Fourth Proportional to 28,709.63, 43,057.45 and 12,069.87

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Solution

The fourth proportional to 28,709.63, 43,057.45 and 12,069.87 is: 18,101.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,709.63 : 43,057.45 = 12,069.87 : x
  2. Step 2: Convert to fraction form
    28,709.63/43,057.45 = 12,069.87/x
  3. Step 3: Cross multiply
    28,709.63x = 43,057.45 × 12,069.87
  4. Step 4: Simplify right side
    28,709.63x = 519,697,824.03
  5. Step 5: Solve for x
    x = 519,697,824.03/28,709.63
  6. Step 6: Final answer
    x = 18,101.86

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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.