Home / 28,673.68-43,020.54-11,155.78

Finding the Fourth Proportional to 28,673.68, 43,020.54 and 11,155.78

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Solution

The fourth proportional to 28,673.68, 43,020.54 and 11,155.78 is: 16,737.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,673.68 : 43,020.54 = 11,155.78 : x
  2. Step 2: Convert to fraction form
    28,673.68/43,020.54 = 11,155.78/x
  3. Step 3: Cross multiply
    28,673.68x = 43,020.54 × 11,155.78
  4. Step 4: Simplify right side
    28,673.68x = 479,927,679.72
  5. Step 5: Solve for x
    x = 479,927,679.72/28,673.68
  6. Step 6: Final answer
    x = 16,737.57

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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.