Home / 16,982.71-23,438.91-9,431.47

Finding the Fourth Proportional to 16,982.71, 23,438.91 and 9,431.47

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Solution

The fourth proportional to 16,982.71, 23,438.91 and 9,431.47 is: 13,016.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,982.71 : 23,438.91 = 9,431.47 : x
  2. Step 2: Convert to fraction form
    16,982.71/23,438.91 = 9,431.47/x
  3. Step 3: Cross multiply
    16,982.71x = 23,438.91 × 9,431.47
  4. Step 4: Simplify right side
    16,982.71x = 221,063,376.50
  5. Step 5: Solve for x
    x = 221,063,376.50/16,982.71
  6. Step 6: Final answer
    x = 13,016.97

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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.