Home / 28,743.12-43,115.40-7,966.56

Finding the Fourth Proportional to 28,743.12, 43,115.40 and 7,966.56

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Solution

The fourth proportional to 28,743.12, 43,115.40 and 7,966.56 is: 11,950.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,743.12 : 43,115.40 = 7,966.56 : x
  2. Step 2: Convert to fraction form
    28,743.12/43,115.40 = 7,966.56/x
  3. Step 3: Cross multiply
    28,743.12x = 43,115.40 × 7,966.56
  4. Step 4: Simplify right side
    28,743.12x = 343,481,421.02
  5. Step 5: Solve for x
    x = 343,481,421.02/28,743.12
  6. Step 6: Final answer
    x = 11,950.04

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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.