Home / 52,161.28-71,982.56-28,288

Finding the Fourth Proportional to 52,161.28, 71,982.56 and 28,288

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Solution

The fourth proportional to 52,161.28, 71,982.56 and 28,288 is: 39,037.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,161.28 : 71,982.56 = 28,288 : x
  2. Step 2: Convert to fraction form
    52,161.28/71,982.56 = 28,288/x
  3. Step 3: Cross multiply
    52,161.28x = 71,982.56 × 28,288
  4. Step 4: Simplify right side
    52,161.28x = 2,036,242,657.28
  5. Step 5: Solve for x
    x = 2,036,242,657.28/52,161.28
  6. Step 6: Final answer
    x = 39,037.44

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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.