Home / 23,147.60-31,941.38-12,936.74

Finding the Fourth Proportional to 23,147.60, 31,941.38 and 12,936.74

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Solution

The fourth proportional to 23,147.60, 31,941.38 and 12,936.74 is: 17,851.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,147.60 : 31,941.38 = 12,936.74 : x
  2. Step 2: Convert to fraction form
    23,147.60/31,941.38 = 12,936.74/x
  3. Step 3: Cross multiply
    23,147.60x = 31,941.38 × 12,936.74
  4. Step 4: Simplify right side
    23,147.60x = 413,217,328.30
  5. Step 5: Solve for x
    x = 413,217,328.30/23,147.60
  6. Step 6: Final answer
    x = 17,851.41

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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.