Home / 20,192.34-27,879.15-12,641.73

Finding the Fourth Proportional to 20,192.34, 27,879.15 and 12,641.73

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Solution

The fourth proportional to 20,192.34, 27,879.15 and 12,641.73 is: 17,454.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,192.34 : 27,879.15 = 12,641.73 : x
  2. Step 2: Convert to fraction form
    20,192.34/27,879.15 = 12,641.73/x
  3. Step 3: Cross multiply
    20,192.34x = 27,879.15 × 12,641.73
  4. Step 4: Simplify right side
    20,192.34x = 352,440,686.93
  5. Step 5: Solve for x
    x = 352,440,686.93/20,192.34
  6. Step 6: Final answer
    x = 17,454.18

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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.