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Finding the Fourth Proportional to 35,699.64, 49,265.46 and 21,549.72

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Solution

The fourth proportional to 35,699.64, 49,265.46 and 21,549.72 is: 29,738.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,699.64 : 49,265.46 = 21,549.72 : x
  2. Step 2: Convert to fraction form
    35,699.64/49,265.46 = 21,549.72/x
  3. Step 3: Cross multiply
    35,699.64x = 49,265.46 × 21,549.72
  4. Step 4: Simplify right side
    35,699.64x = 1,061,656,868.67
  5. Step 5: Solve for x
    x = 1,061,656,868.67/35,699.64
  6. Step 6: Final answer
    x = 29,738.59

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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.