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Finding the Fourth Proportional to 35,303.70, 52,939.41 and 21,078.64

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Solution

The fourth proportional to 35,303.70, 52,939.41 and 21,078.64 is: 31,608.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,303.70 : 52,939.41 = 21,078.64 : x
  2. Step 2: Convert to fraction form
    35,303.70/52,939.41 = 21,078.64/x
  3. Step 3: Cross multiply
    35,303.70x = 52,939.41 × 21,078.64
  4. Step 4: Simplify right side
    35,303.70x = 1,115,890,454.55
  5. Step 5: Solve for x
    x = 1,115,890,454.55/35,303.70
  6. Step 6: Final answer
    x = 31,608.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.