Home / 28,272.13-39,015.68-17,667.88

Finding the Fourth Proportional to 28,272.13, 39,015.68 and 17,667.88

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Solution

The fourth proportional to 28,272.13, 39,015.68 and 17,667.88 is: 24,381.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,272.13 : 39,015.68 = 17,667.88 : x
  2. Step 2: Convert to fraction form
    28,272.13/39,015.68 = 17,667.88/x
  3. Step 3: Cross multiply
    28,272.13x = 39,015.68 × 17,667.88
  4. Step 4: Simplify right side
    28,272.13x = 689,324,166.48
  5. Step 5: Solve for x
    x = 689,324,166.48/28,272.13
  6. Step 6: Final answer
    x = 24,381.76

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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.