Home / 28,757.81-43,143.62-9,036.35

Finding the Fourth Proportional to 28,757.81, 43,143.62 and 9,036.35

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Solution

The fourth proportional to 28,757.81, 43,143.62 and 9,036.35 is: 13,556.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,757.81 : 43,143.62 = 9,036.35 : x
  2. Step 2: Convert to fraction form
    28,757.81/43,143.62 = 9,036.35/x
  3. Step 3: Cross multiply
    28,757.81x = 43,143.62 × 9,036.35
  4. Step 4: Simplify right side
    28,757.81x = 389,860,742.73
  5. Step 5: Solve for x
    x = 389,860,742.73/28,757.81
  6. Step 6: Final answer
    x = 13,556.69

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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.