Home / 21,292.76-29,380.68-12,341.12

Finding the Fourth Proportional to 21,292.76, 29,380.68 and 12,341.12

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Solution

The fourth proportional to 21,292.76, 29,380.68 and 12,341.12 is: 17,028.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,292.76 : 29,380.68 = 12,341.12 : x
  2. Step 2: Convert to fraction form
    21,292.76/29,380.68 = 12,341.12/x
  3. Step 3: Cross multiply
    21,292.76x = 29,380.68 × 12,341.12
  4. Step 4: Simplify right side
    21,292.76x = 362,590,497.56
  5. Step 5: Solve for x
    x = 362,590,497.56/21,292.76
  6. Step 6: Final answer
    x = 17,028.82

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Double scale
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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.