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Finding the Fourth Proportional to 35,661.30, 49,200.48 and 20,553.48

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Solution

The fourth proportional to 35,661.30, 49,200.48 and 20,553.48 is: 28,356.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,661.30 : 49,200.48 = 20,553.48 : x
  2. Step 2: Convert to fraction form
    35,661.30/49,200.48 = 20,553.48/x
  3. Step 3: Cross multiply
    35,661.30x = 49,200.48 × 20,553.48
  4. Step 4: Simplify right side
    35,661.30x = 1,011,241,081.67
  5. Step 5: Solve for x
    x = 1,011,241,081.67/35,661.30
  6. Step 6: Final answer
    x = 28,356.82

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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.