Home / 28,712.56-43,065.43-7,654.18

Finding the Fourth Proportional to 28,712.56, 43,065.43 and 7,654.18

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Solution

The fourth proportional to 28,712.56, 43,065.43 and 7,654.18 is: 11,480.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,712.56 : 43,065.43 = 7,654.18 : x
  2. Step 2: Convert to fraction form
    28,712.56/43,065.43 = 7,654.18/x
  3. Step 3: Cross multiply
    28,712.56x = 43,065.43 × 7,654.18
  4. Step 4: Simplify right side
    28,712.56x = 329,630,514.73
  5. Step 5: Solve for x
    x = 329,630,514.73/28,712.56
  6. Step 6: Final answer
    x = 11,480.36

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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.