Home / 28,273.92-39,010.56-19,311.36

Finding the Fourth Proportional to 28,273.92, 39,010.56 and 19,311.36

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Solution

The fourth proportional to 28,273.92, 39,010.56 and 19,311.36 is: 26,644.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,273.92 : 39,010.56 = 19,311.36 : x
  2. Step 2: Convert to fraction form
    28,273.92/39,010.56 = 19,311.36/x
  3. Step 3: Cross multiply
    28,273.92x = 39,010.56 × 19,311.36
  4. Step 4: Simplify right side
    28,273.92x = 753,346,967.96
  5. Step 5: Solve for x
    x = 753,346,967.96/28,273.92
  6. Step 6: Final answer
    x = 26,644.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.