Home / 35,325.70-48,747.21-20,218.30

Finding the Fourth Proportional to 35,325.70, 48,747.21 and 20,218.30

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Solution

The fourth proportional to 35,325.70, 48,747.21 and 20,218.30 is: 27,899.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,325.70 : 48,747.21 = 20,218.30 : x
  2. Step 2: Convert to fraction form
    35,325.70/48,747.21 = 20,218.30/x
  3. Step 3: Cross multiply
    35,325.70x = 48,747.21 × 20,218.30
  4. Step 4: Simplify right side
    35,325.70x = 985,585,715.94
  5. Step 5: Solve for x
    x = 985,585,715.94/35,325.70
  6. Step 6: Final answer
    x = 27,899.96

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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.