Home / 20,351.26-30,665.55-16,734.50

Finding the Fourth Proportional to 20,351.26, 30,665.55 and 16,734.50

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Solution

The fourth proportional to 20,351.26, 30,665.55 and 16,734.50 is: 25,215.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,351.26 : 30,665.55 = 16,734.50 : x
  2. Step 2: Convert to fraction form
    20,351.26/30,665.55 = 16,734.50/x
  3. Step 3: Cross multiply
    20,351.26x = 30,665.55 × 16,734.50
  4. Step 4: Simplify right side
    20,351.26x = 513,172,646.48
  5. Step 5: Solve for x
    x = 513,172,646.48/20,351.26
  6. Step 6: Final answer
    x = 25,215.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.