Home / 16,982.60-23,438.79-9,431.35

Finding the Fourth Proportional to 16,982.60, 23,438.79 and 9,431.35

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Solution

The fourth proportional to 16,982.60, 23,438.79 and 9,431.35 is: 13,016.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,982.60 : 23,438.79 = 9,431.35 : x
  2. Step 2: Convert to fraction form
    16,982.60/23,438.79 = 9,431.35/x
  3. Step 3: Cross multiply
    16,982.60x = 23,438.79 × 9,431.35
  4. Step 4: Simplify right side
    16,982.60x = 221,059,314.87
  5. Step 5: Solve for x
    x = 221,059,314.87/16,982.60
  6. Step 6: Final answer
    x = 13,016.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.