Home / 35,520.12-49,026.60-20,211.12

Finding the Fourth Proportional to 35,520.12, 49,026.60 and 20,211.12

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Solution

The fourth proportional to 35,520.12, 49,026.60 and 20,211.12 is: 27,896.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,520.12 : 49,026.60 = 20,211.12 : x
  2. Step 2: Convert to fraction form
    35,520.12/49,026.60 = 20,211.12/x
  3. Step 3: Cross multiply
    35,520.12x = 49,026.60 × 20,211.12
  4. Step 4: Simplify right side
    35,520.12x = 990,882,495.79
  5. Step 5: Solve for x
    x = 990,882,495.79/35,520.12
  6. Step 6: Final answer
    x = 27,896.37

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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.