Home / 28,905.68-43,357.53-12,254.99

Finding the Fourth Proportional to 28,905.68, 43,357.53 and 12,254.99

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Solution

The fourth proportional to 28,905.68, 43,357.53 and 12,254.99 is: 18,382.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,905.68 : 43,357.53 = 12,254.99 : x
  2. Step 2: Convert to fraction form
    28,905.68/43,357.53 = 12,254.99/x
  3. Step 3: Cross multiply
    28,905.68x = 43,357.53 × 12,254.99
  4. Step 4: Simplify right side
    28,905.68x = 531,346,096.57
  5. Step 5: Solve for x
    x = 531,346,096.57/28,905.68
  6. Step 6: Final answer
    x = 18,382.07

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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.