Home / 21,279.38-29,363.73-11,848.82

Finding the Fourth Proportional to 21,279.38, 29,363.73 and 11,848.82

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Solution

The fourth proportional to 21,279.38, 29,363.73 and 11,848.82 is: 16,350.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,279.38 : 29,363.73 = 11,848.82 : x
  2. Step 2: Convert to fraction form
    21,279.38/29,363.73 = 11,848.82/x
  3. Step 3: Cross multiply
    21,279.38x = 29,363.73 × 11,848.82
  4. Step 4: Simplify right side
    21,279.38x = 347,925,551.30
  5. Step 5: Solve for x
    x = 347,925,551.30/21,279.38
  6. Step 6: Final answer
    x = 16,350.36

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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.