Home / 21,252.53-29,327.31-11,820.48

Finding the Fourth Proportional to 21,252.53, 29,327.31 and 11,820.48

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Solution

The fourth proportional to 21,252.53, 29,327.31 and 11,820.48 is: 16,311.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,252.53 : 29,327.31 = 11,820.48 : x
  2. Step 2: Convert to fraction form
    21,252.53/29,327.31 = 11,820.48/x
  3. Step 3: Cross multiply
    21,252.53x = 29,327.31 × 11,820.48
  4. Step 4: Simplify right side
    21,252.53x = 346,662,881.31
  5. Step 5: Solve for x
    x = 346,662,881.31/21,252.53
  6. Step 6: Final answer
    x = 16,311.61

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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.