Home / 28,173.11-42,259.68-11,530.26

Finding the Fourth Proportional to 28,173.11, 42,259.68 and 11,530.26

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Solution

The fourth proportional to 28,173.11, 42,259.68 and 11,530.26 is: 17,295.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,173.11 : 42,259.68 = 11,530.26 : x
  2. Step 2: Convert to fraction form
    28,173.11/42,259.68 = 11,530.26/x
  3. Step 3: Cross multiply
    28,173.11x = 42,259.68 × 11,530.26
  4. Step 4: Simplify right side
    28,173.11x = 487,265,097.92
  5. Step 5: Solve for x
    x = 487,265,097.92/28,173.11
  6. Step 6: Final answer
    x = 17,295.40

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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.