Home / 23,158-31,961.69-13,724.74

Finding the Fourth Proportional to 23,158, 31,961.69 and 13,724.74

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Solution

The fourth proportional to 23,158, 31,961.69 and 13,724.74 is: 18,942.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,158 : 31,961.69 = 13,724.74 : x
  2. Step 2: Convert to fraction form
    23,158/31,961.69 = 13,724.74/x
  3. Step 3: Cross multiply
    23,158x = 31,961.69 × 13,724.74
  4. Step 4: Simplify right side
    23,158x = 438,665,885.21
  5. Step 5: Solve for x
    x = 438,665,885.21/23,158
  6. Step 6: Final answer
    x = 18,942.30

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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.