Home / 28,759.21-43,129.17-13,958.68

Finding the Fourth Proportional to 28,759.21, 43,129.17 and 13,958.68

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Solution

The fourth proportional to 28,759.21, 43,129.17 and 13,958.68 is: 20,933.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,759.21 : 43,129.17 = 13,958.68 : x
  2. Step 2: Convert to fraction form
    28,759.21/43,129.17 = 13,958.68/x
  3. Step 3: Cross multiply
    28,759.21x = 43,129.17 × 13,958.68
  4. Step 4: Simplify right side
    28,759.21x = 602,026,282.70
  5. Step 5: Solve for x
    x = 602,026,282.70/28,759.21
  6. Step 6: Final answer
    x = 20,933.34

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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.