Home / 19,631.43-29,431.66-9,765.33

Finding the Fourth Proportional to 19,631.43, 29,431.66 and 9,765.33

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Solution

The fourth proportional to 19,631.43, 29,431.66 and 9,765.33 is: 14,640.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,631.43 : 29,431.66 = 9,765.33 : x
  2. Step 2: Convert to fraction form
    19,631.43/29,431.66 = 9,765.33/x
  3. Step 3: Cross multiply
    19,631.43x = 29,431.66 × 9,765.33
  4. Step 4: Simplify right side
    19,631.43x = 287,409,872.35
  5. Step 5: Solve for x
    x = 287,409,872.35/19,631.43
  6. Step 6: Final answer
    x = 14,640.29

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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.