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Finding the Fourth Proportional to 35,700.78, 49,265.91 and 21,551.16

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Solution

The fourth proportional to 35,700.78, 49,265.91 and 21,551.16 is: 29,739.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,700.78 : 49,265.91 = 21,551.16 : x
  2. Step 2: Convert to fraction form
    35,700.78/49,265.91 = 21,551.16/x
  3. Step 3: Cross multiply
    35,700.78x = 49,265.91 × 21,551.16
  4. Step 4: Simplify right side
    35,700.78x = 1,061,737,508.96
  5. Step 5: Solve for x
    x = 1,061,737,508.96/35,700.78
  6. Step 6: Final answer
    x = 29,739.90

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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.