Home / 23,178.72-31,986.90-12,568.44

Finding the Fourth Proportional to 23,178.72, 31,986.90 and 12,568.44

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Solution

The fourth proportional to 23,178.72, 31,986.90 and 12,568.44 is: 17,344.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,178.72 : 31,986.90 = 12,568.44 : x
  2. Step 2: Convert to fraction form
    23,178.72/31,986.90 = 12,568.44/x
  3. Step 3: Cross multiply
    23,178.72x = 31,986.90 × 12,568.44
  4. Step 4: Simplify right side
    23,178.72x = 402,025,433.44
  5. Step 5: Solve for x
    x = 402,025,433.44/23,178.72
  6. Step 6: Final answer
    x = 17,344.59

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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.