Home / 21,177.33-29,211.99-14,007.42

Finding the Fourth Proportional to 21,177.33, 29,211.99 and 14,007.42

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Solution

The fourth proportional to 21,177.33, 29,211.99 and 14,007.42 is: 19,321.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,177.33 : 29,211.99 = 14,007.42 : x
  2. Step 2: Convert to fraction form
    21,177.33/29,211.99 = 14,007.42/x
  3. Step 3: Cross multiply
    21,177.33x = 29,211.99 × 14,007.42
  4. Step 4: Simplify right side
    21,177.33x = 409,184,612.97
  5. Step 5: Solve for x
    x = 409,184,612.97/21,177.33
  6. Step 6: Final answer
    x = 19,321.82

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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.