Home / 21,375.88-29,506.94-19,133.80

Finding the Fourth Proportional to 21,375.88, 29,506.94 and 19,133.80

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Solution

The fourth proportional to 21,375.88, 29,506.94 and 19,133.80 is: 26,412.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,375.88 : 29,506.94 = 19,133.80 : x
  2. Step 2: Convert to fraction form
    21,375.88/29,506.94 = 19,133.80/x
  3. Step 3: Cross multiply
    21,375.88x = 29,506.94 × 19,133.80
  4. Step 4: Simplify right side
    21,375.88x = 564,579,888.57
  5. Step 5: Solve for x
    x = 564,579,888.57/21,375.88
  6. Step 6: Final answer
    x = 26,412.01

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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.