Home / 21,429.82-29,553.42-14,703.58

Finding the Fourth Proportional to 21,429.82, 29,553.42 and 14,703.58

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Solution

The fourth proportional to 21,429.82, 29,553.42 and 14,703.58 is: 20,277.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,429.82 : 29,553.42 = 14,703.58 : x
  2. Step 2: Convert to fraction form
    21,429.82/29,553.42 = 14,703.58/x
  3. Step 3: Cross multiply
    21,429.82x = 29,553.42 × 14,703.58
  4. Step 4: Simplify right side
    21,429.82x = 434,541,075.24
  5. Step 5: Solve for x
    x = 434,541,075.24/21,429.82
  6. Step 6: Final answer
    x = 20,277.40

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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.