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Finding the Fourth Proportional to 35,247, 48,645.18 and 20,343

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Solution

The fourth proportional to 35,247, 48,645.18 and 20,343 is: 28,075.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,247 : 48,645.18 = 20,343 : x
  2. Step 2: Convert to fraction form
    35,247/48,645.18 = 20,343/x
  3. Step 3: Cross multiply
    35,247x = 48,645.18 × 20,343
  4. Step 4: Simplify right side
    35,247x = 989,588,896.74
  5. Step 5: Solve for x
    x = 989,588,896.74/35,247
  6. Step 6: Final answer
    x = 28,075.83

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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.