Home / 20,535.42-28,313.20-17,137.32

Finding the Fourth Proportional to 20,535.42, 28,313.20 and 17,137.32

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Solution

The fourth proportional to 20,535.42, 28,313.20 and 17,137.32 is: 23,628.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,535.42 : 28,313.20 = 17,137.32 : x
  2. Step 2: Convert to fraction form
    20,535.42/28,313.20 = 17,137.32/x
  3. Step 3: Cross multiply
    20,535.42x = 28,313.20 × 17,137.32
  4. Step 4: Simplify right side
    20,535.42x = 485,212,368.62
  5. Step 5: Solve for x
    x = 485,212,368.62/20,535.42
  6. Step 6: Final answer
    x = 23,628.07

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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.