Home / 19,687.65-29,531.70-4,896.60

Finding the Fourth Proportional to 19,687.65, 29,531.70 and 4,896.60

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Solution

The fourth proportional to 19,687.65, 29,531.70 and 4,896.60 is: 7,344.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,687.65 : 29,531.70 = 4,896.60 : x
  2. Step 2: Convert to fraction form
    19,687.65/29,531.70 = 4,896.60/x
  3. Step 3: Cross multiply
    19,687.65x = 29,531.70 × 4,896.60
  4. Step 4: Simplify right side
    19,687.65x = 144,604,922.22
  5. Step 5: Solve for x
    x = 144,604,922.22/19,687.65
  6. Step 6: Final answer
    x = 7,344.96

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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.