Home / 21,164.08-29,207.74-11,732.64

Finding the Fourth Proportional to 21,164.08, 29,207.74 and 11,732.64

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Solution

The fourth proportional to 21,164.08, 29,207.74 and 11,732.64 is: 16,191.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,164.08 : 29,207.74 = 11,732.64 : x
  2. Step 2: Convert to fraction form
    21,164.08/29,207.74 = 11,732.64/x
  3. Step 3: Cross multiply
    21,164.08x = 29,207.74 × 11,732.64
  4. Step 4: Simplify right side
    21,164.08x = 342,683,869.30
  5. Step 5: Solve for x
    x = 342,683,869.30/21,164.08
  6. Step 6: Final answer
    x = 16,191.77

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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.