Home / 21,431.50-29,585.72-14,273.33

Finding the Fourth Proportional to 21,431.50, 29,585.72 and 14,273.33

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Solution

The fourth proportional to 21,431.50, 29,585.72 and 14,273.33 is: 19,704.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,431.50 : 29,585.72 = 14,273.33 : x
  2. Step 2: Convert to fraction form
    21,431.50/29,585.72 = 14,273.33/x
  3. Step 3: Cross multiply
    21,431.50x = 29,585.72 × 14,273.33
  4. Step 4: Simplify right side
    21,431.50x = 422,286,632.60
  5. Step 5: Solve for x
    x = 422,286,632.60/21,431.50
  6. Step 6: Final answer
    x = 19,704.02

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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.