Home / 34,390.60-51,537.30-21,203.80

Finding the Fourth Proportional to 34,390.60, 51,537.30 and 21,203.80

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Solution

The fourth proportional to 34,390.60, 51,537.30 and 21,203.80 is: 31,775.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,390.60 : 51,537.30 = 21,203.80 : x
  2. Step 2: Convert to fraction form
    34,390.60/51,537.30 = 21,203.80/x
  3. Step 3: Cross multiply
    34,390.60x = 51,537.30 × 21,203.80
  4. Step 4: Simplify right side
    34,390.60x = 1,092,786,601.74
  5. Step 5: Solve for x
    x = 1,092,786,601.74/34,390.60
  6. Step 6: Final answer
    x = 31,775.74

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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.