Home / 20,437.25-30,639.18-10,579.37

Finding the Fourth Proportional to 20,437.25, 30,639.18 and 10,579.37

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Solution

The fourth proportional to 20,437.25, 30,639.18 and 10,579.37 is: 15,860.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,437.25 : 30,639.18 = 10,579.37 : x
  2. Step 2: Convert to fraction form
    20,437.25/30,639.18 = 10,579.37/x
  3. Step 3: Cross multiply
    20,437.25x = 30,639.18 × 10,579.37
  4. Step 4: Simplify right side
    20,437.25x = 324,143,221.72
  5. Step 5: Solve for x
    x = 324,143,221.72/20,437.25
  6. Step 6: Final answer
    x = 15,860.41

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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.