Home / 28,660.38-42,914.43-19,285.98

Finding the Fourth Proportional to 28,660.38, 42,914.43 and 19,285.98

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Solution

The fourth proportional to 28,660.38, 42,914.43 and 19,285.98 is: 28,877.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,660.38 : 42,914.43 = 19,285.98 : x
  2. Step 2: Convert to fraction form
    28,660.38/42,914.43 = 19,285.98/x
  3. Step 3: Cross multiply
    28,660.38x = 42,914.43 × 19,285.98
  4. Step 4: Simplify right side
    28,660.38x = 827,646,838.69
  5. Step 5: Solve for x
    x = 827,646,838.69/28,660.38
  6. Step 6: Final answer
    x = 28,877.73

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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.