Home / 16,985.17-23,439.78-9,431.97

Finding the Fourth Proportional to 16,985.17, 23,439.78 and 9,431.97

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Solution

The fourth proportional to 16,985.17, 23,439.78 and 9,431.97 is: 13,016.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,985.17 : 23,439.78 = 9,431.97 : x
  2. Step 2: Convert to fraction form
    16,985.17/23,439.78 = 9,431.97/x
  3. Step 3: Cross multiply
    16,985.17x = 23,439.78 × 9,431.97
  4. Step 4: Simplify right side
    16,985.17x = 221,083,279.79
  5. Step 5: Solve for x
    x = 221,083,279.79/16,985.17
  6. Step 6: Final answer
    x = 13,016.25

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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.