Home / 21,429.43-29,567.84-12,932.93

Finding the Fourth Proportional to 21,429.43, 29,567.84 and 12,932.93

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Solution

The fourth proportional to 21,429.43, 29,567.84 and 12,932.93 is: 17,844.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,429.43 : 29,567.84 = 12,932.93 : x
  2. Step 2: Convert to fraction form
    21,429.43/29,567.84 = 12,932.93/x
  3. Step 3: Cross multiply
    21,429.43x = 29,567.84 × 12,932.93
  4. Step 4: Simplify right side
    21,429.43x = 382,398,814.23
  5. Step 5: Solve for x
    x = 382,398,814.23/21,429.43
  6. Step 6: Final answer
    x = 17,844.57

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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.