Home / 20,140.34-30,226.70-10,282.22

Finding the Fourth Proportional to 20,140.34, 30,226.70 and 10,282.22

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Solution

The fourth proportional to 20,140.34, 30,226.70 and 10,282.22 is: 15,431.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,140.34 : 30,226.70 = 10,282.22 : x
  2. Step 2: Convert to fraction form
    20,140.34/30,226.70 = 10,282.22/x
  3. Step 3: Cross multiply
    20,140.34x = 30,226.70 × 10,282.22
  4. Step 4: Simplify right side
    20,140.34x = 310,797,579.27
  5. Step 5: Solve for x
    x = 310,797,579.27/20,140.34
  6. Step 6: Final answer
    x = 15,431.60

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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.