Home / 34,721.20-51,997.92-19,885.12

Finding the Fourth Proportional to 34,721.20, 51,997.92 and 19,885.12

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Solution

The fourth proportional to 34,721.20, 51,997.92 and 19,885.12 is: 29,779.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,721.20 : 51,997.92 = 19,885.12 : x
  2. Step 2: Convert to fraction form
    34,721.20/51,997.92 = 19,885.12/x
  3. Step 3: Cross multiply
    34,721.20x = 51,997.92 × 19,885.12
  4. Step 4: Simplify right side
    34,721.20x = 1,033,984,878.95
  5. Step 5: Solve for x
    x = 1,033,984,878.95/34,721.20
  6. Step 6: Final answer
    x = 29,779.64

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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.