Home / 35,553.12-49,072.80-20,447.43

Finding the Fourth Proportional to 35,553.12, 49,072.80 and 20,447.43

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Solution

The fourth proportional to 35,553.12, 49,072.80 and 20,447.43 is: 28,222.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,553.12 : 49,072.80 = 20,447.43 : x
  2. Step 2: Convert to fraction form
    35,553.12/49,072.80 = 20,447.43/x
  3. Step 3: Cross multiply
    35,553.12x = 49,072.80 × 20,447.43
  4. Step 4: Simplify right side
    35,553.12x = 1,003,412,642.90
  5. Step 5: Solve for x
    x = 1,003,412,642.90/35,553.12
  6. Step 6: Final answer
    x = 28,222.91

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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.