Home / 22,743.20-31,385.34-12,671.61

Finding the Fourth Proportional to 22,743.20, 31,385.34 and 12,671.61

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Solution

The fourth proportional to 22,743.20, 31,385.34 and 12,671.61 is: 17,486.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,743.20 : 31,385.34 = 12,671.61 : x
  2. Step 2: Convert to fraction form
    22,743.20/31,385.34 = 12,671.61/x
  3. Step 3: Cross multiply
    22,743.20x = 31,385.34 × 12,671.61
  4. Step 4: Simplify right side
    22,743.20x = 397,702,788.20
  5. Step 5: Solve for x
    x = 397,702,788.20/22,743.20
  6. Step 6: Final answer
    x = 17,486.67

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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.