Home / 35,516.70-49,021.42-20,418.12

Finding the Fourth Proportional to 35,516.70, 49,021.42 and 20,418.12

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Solution

The fourth proportional to 35,516.70, 49,021.42 and 20,418.12 is: 28,181.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,516.70 : 49,021.42 = 20,418.12 : x
  2. Step 2: Convert to fraction form
    35,516.70/49,021.42 = 20,418.12/x
  3. Step 3: Cross multiply
    35,516.70x = 49,021.42 × 20,418.12
  4. Step 4: Simplify right side
    35,516.70x = 1,000,925,236.13
  5. Step 5: Solve for x
    x = 1,000,925,236.13/35,516.70
  6. Step 6: Final answer
    x = 28,181.82

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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.