Home / 19,405.50-29,083.89-8,299.12

Finding the Fourth Proportional to 19,405.50, 29,083.89 and 8,299.12

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Solution

The fourth proportional to 19,405.50, 29,083.89 and 8,299.12 is: 12,438.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,405.50 : 29,083.89 = 8,299.12 : x
  2. Step 2: Convert to fraction form
    19,405.50/29,083.89 = 8,299.12/x
  3. Step 3: Cross multiply
    19,405.50x = 29,083.89 × 8,299.12
  4. Step 4: Simplify right side
    19,405.50x = 241,370,693.18
  5. Step 5: Solve for x
    x = 241,370,693.18/19,405.50
  6. Step 6: Final answer
    x = 12,438.26

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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.