Home / 21,203.52-29,260.88-11,772.16

Finding the Fourth Proportional to 21,203.52, 29,260.88 and 11,772.16

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Solution

The fourth proportional to 21,203.52, 29,260.88 and 11,772.16 is: 16,245.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,203.52 : 29,260.88 = 11,772.16 : x
  2. Step 2: Convert to fraction form
    21,203.52/29,260.88 = 11,772.16/x
  3. Step 3: Cross multiply
    21,203.52x = 29,260.88 × 11,772.16
  4. Step 4: Simplify right side
    21,203.52x = 344,463,761.10
  5. Step 5: Solve for x
    x = 344,463,761.10/21,203.52
  6. Step 6: Final answer
    x = 16,245.59

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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.