Home / 20,217.67-30,322.32-5,423.07

Finding the Fourth Proportional to 20,217.67, 30,322.32 and 5,423.07

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Solution

The fourth proportional to 20,217.67, 30,322.32 and 5,423.07 is: 8,133.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,217.67 : 30,322.32 = 5,423.07 : x
  2. Step 2: Convert to fraction form
    20,217.67/30,322.32 = 5,423.07/x
  3. Step 3: Cross multiply
    20,217.67x = 30,322.32 × 5,423.07
  4. Step 4: Simplify right side
    20,217.67x = 164,439,885.20
  5. Step 5: Solve for x
    x = 164,439,885.20/20,217.67
  6. Step 6: Final answer
    x = 8,133.48

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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.