Home / 34,390.10-51,536.55-21,203.30

Finding the Fourth Proportional to 34,390.10, 51,536.55 and 21,203.30

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Solution

The fourth proportional to 34,390.10, 51,536.55 and 21,203.30 is: 31,774.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,390.10 : 51,536.55 = 21,203.30 : x
  2. Step 2: Convert to fraction form
    34,390.10/51,536.55 = 21,203.30/x
  3. Step 3: Cross multiply
    34,390.10x = 51,536.55 × 21,203.30
  4. Step 4: Simplify right side
    34,390.10x = 1,092,744,930.62
  5. Step 5: Solve for x
    x = 1,092,744,930.62/34,390.10
  6. Step 6: Final answer
    x = 31,774.99

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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.