Home / 34,175.20-51,238.19-21,000.35

Finding the Fourth Proportional to 34,175.20, 51,238.19 and 21,000.35

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Solution

The fourth proportional to 34,175.20, 51,238.19 and 21,000.35 is: 31,485.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,175.20 : 51,238.19 = 21,000.35 : x
  2. Step 2: Convert to fraction form
    34,175.20/51,238.19 = 21,000.35/x
  3. Step 3: Cross multiply
    34,175.20x = 51,238.19 × 21,000.35
  4. Step 4: Simplify right side
    34,175.20x = 1,076,019,923.37
  5. Step 5: Solve for x
    x = 1,076,019,923.37/34,175.20
  6. Step 6: Final answer
    x = 31,485.40

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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.