Home / 21,164.71-29,209.40-11,735.10

Finding the Fourth Proportional to 21,164.71, 29,209.40 and 11,735.10

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Solution

The fourth proportional to 21,164.71, 29,209.40 and 11,735.10 is: 16,195.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,164.71 : 29,209.40 = 11,735.10 : x
  2. Step 2: Convert to fraction form
    21,164.71/29,209.40 = 11,735.10/x
  3. Step 3: Cross multiply
    21,164.71x = 29,209.40 × 11,735.10
  4. Step 4: Simplify right side
    21,164.71x = 342,775,229.94
  5. Step 5: Solve for x
    x = 342,775,229.94/21,164.71
  6. Step 6: Final answer
    x = 16,195.60

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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.