Home / 21,107.52-29,261.58-19,983.96

Finding the Fourth Proportional to 21,107.52, 29,261.58 and 19,983.96

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Solution

The fourth proportional to 21,107.52, 29,261.58 and 19,983.96 is: 27,703.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,107.52 : 29,261.58 = 19,983.96 : x
  2. Step 2: Convert to fraction form
    21,107.52/29,261.58 = 19,983.96/x
  3. Step 3: Cross multiply
    21,107.52x = 29,261.58 × 19,983.96
  4. Step 4: Simplify right side
    21,107.52x = 584,762,244.26
  5. Step 5: Solve for x
    x = 584,762,244.26/21,107.52
  6. Step 6: Final answer
    x = 27,703.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.