Home / 21,392.01-29,529.09-19,149.75

Finding the Fourth Proportional to 21,392.01, 29,529.09 and 19,149.75

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Solution

The fourth proportional to 21,392.01, 29,529.09 and 19,149.75 is: 26,433.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,392.01 : 29,529.09 = 19,149.75 : x
  2. Step 2: Convert to fraction form
    21,392.01/29,529.09 = 19,149.75/x
  3. Step 3: Cross multiply
    21,392.01x = 29,529.09 × 19,149.75
  4. Step 4: Simplify right side
    21,392.01x = 565,474,691.23
  5. Step 5: Solve for x
    x = 565,474,691.23/21,392.01
  6. Step 6: Final answer
    x = 26,433.92

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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.