Home / 21,329.66-29,426.69-12,375.52

Finding the Fourth Proportional to 21,329.66, 29,426.69 and 12,375.52

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Solution

The fourth proportional to 21,329.66, 29,426.69 and 12,375.52 is: 17,073.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,329.66 : 29,426.69 = 12,375.52 : x
  2. Step 2: Convert to fraction form
    21,329.66/29,426.69 = 12,375.52/x
  3. Step 3: Cross multiply
    21,329.66x = 29,426.69 × 12,375.52
  4. Step 4: Simplify right side
    21,329.66x = 364,170,548.00
  5. Step 5: Solve for x
    x = 364,170,548.00/21,329.66
  6. Step 6: Final answer
    x = 17,073.43

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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.