Home / 20,435.45-28,204.26-17,027.05

Finding the Fourth Proportional to 20,435.45, 28,204.26 and 17,027.05

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Solution

The fourth proportional to 20,435.45, 28,204.26 and 17,027.05 is: 23,500.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,435.45 : 28,204.26 = 17,027.05 : x
  2. Step 2: Convert to fraction form
    20,435.45/28,204.26 = 17,027.05/x
  3. Step 3: Cross multiply
    20,435.45x = 28,204.26 × 17,027.05
  4. Step 4: Simplify right side
    20,435.45x = 480,235,345.23
  5. Step 5: Solve for x
    x = 480,235,345.23/20,435.45
  6. Step 6: Final answer
    x = 23,500.11

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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.