Home / 34,292.20-51,438.30-21,170.20

Finding the Fourth Proportional to 34,292.20, 51,438.30 and 21,170.20

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Solution

The fourth proportional to 34,292.20, 51,438.30 and 21,170.20 is: 31,755.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,292.20 : 51,438.30 = 21,170.20 : x
  2. Step 2: Convert to fraction form
    34,292.20/51,438.30 = 21,170.20/x
  3. Step 3: Cross multiply
    34,292.20x = 51,438.30 × 21,170.20
  4. Step 4: Simplify right side
    34,292.20x = 1,088,959,098.66
  5. Step 5: Solve for x
    x = 1,088,959,098.66/34,292.20
  6. Step 6: Final answer
    x = 31,755.30

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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.