Home / 28,105.45-38,793.60-18,552.31

Finding the Fourth Proportional to 28,105.45, 38,793.60 and 18,552.31

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Solution

The fourth proportional to 28,105.45, 38,793.60 and 18,552.31 is: 25,607.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,105.45 : 38,793.60 = 18,552.31 : x
  2. Step 2: Convert to fraction form
    28,105.45/38,793.60 = 18,552.31/x
  3. Step 3: Cross multiply
    28,105.45x = 38,793.60 × 18,552.31
  4. Step 4: Simplify right side
    28,105.45x = 719,710,893.22
  5. Step 5: Solve for x
    x = 719,710,893.22/28,105.45
  6. Step 6: Final answer
    x = 25,607.52

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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.