Home / 28,529.28-39,372.48-15,958.08

Finding the Fourth Proportional to 28,529.28, 39,372.48 and 15,958.08

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Solution

The fourth proportional to 28,529.28, 39,372.48 and 15,958.08 is: 22,023.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,529.28 : 39,372.48 = 15,958.08 : x
  2. Step 2: Convert to fraction form
    28,529.28/39,372.48 = 15,958.08/x
  3. Step 3: Cross multiply
    28,529.28x = 39,372.48 × 15,958.08
  4. Step 4: Simplify right side
    28,529.28x = 628,309,185.64
  5. Step 5: Solve for x
    x = 628,309,185.64/28,529.28
  6. Step 6: Final answer
    x = 22,023.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.