Home / 21,167.50-29,209.84-11,736.06

Finding the Fourth Proportional to 21,167.50, 29,209.84 and 11,736.06

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Solution

The fourth proportional to 21,167.50, 29,209.84 and 11,736.06 is: 16,195.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,167.50 : 29,209.84 = 11,736.06 : x
  2. Step 2: Convert to fraction form
    21,167.50/29,209.84 = 11,736.06/x
  3. Step 3: Cross multiply
    21,167.50x = 29,209.84 × 11,736.06
  4. Step 4: Simplify right side
    21,167.50x = 342,808,434.83
  5. Step 5: Solve for x
    x = 342,808,434.83/21,167.50
  6. Step 6: Final answer
    x = 16,195.04

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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.