Home / 19,518.75-29,281.82-7,832.88

Finding the Fourth Proportional to 19,518.75, 29,281.82 and 7,832.88

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Solution

The fourth proportional to 19,518.75, 29,281.82 and 7,832.88 is: 11,750.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,518.75 : 29,281.82 = 7,832.88 : x
  2. Step 2: Convert to fraction form
    19,518.75/29,281.82 = 7,832.88/x
  3. Step 3: Cross multiply
    19,518.75x = 29,281.82 × 7,832.88
  4. Step 4: Simplify right side
    19,518.75x = 229,360,943.08
  5. Step 5: Solve for x
    x = 229,360,943.08/19,518.75
  6. Step 6: Final answer
    x = 11,750.80

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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.