Home / 28,765.04-43,147.52-7,988.56

Finding the Fourth Proportional to 28,765.04, 43,147.52 and 7,988.56

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Solution

The fourth proportional to 28,765.04, 43,147.52 and 7,988.56 is: 11,982.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,765.04 : 43,147.52 = 7,988.56 : x
  2. Step 2: Convert to fraction form
    28,765.04/43,147.52 = 7,988.56/x
  3. Step 3: Cross multiply
    28,765.04x = 43,147.52 × 7,988.56
  4. Step 4: Simplify right side
    28,765.04x = 344,686,552.37
  5. Step 5: Solve for x
    x = 344,686,552.37/28,765.04
  6. Step 6: Final answer
    x = 11,982.83

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1.5x scale

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.