Home / 21,487.67-29,633.41-13,926.12

Finding the Fourth Proportional to 21,487.67, 29,633.41 and 13,926.12

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Solution

The fourth proportional to 21,487.67, 29,633.41 and 13,926.12 is: 19,205.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,487.67 : 29,633.41 = 13,926.12 : x
  2. Step 2: Convert to fraction form
    21,487.67/29,633.41 = 13,926.12/x
  3. Step 3: Cross multiply
    21,487.67x = 29,633.41 × 13,926.12
  4. Step 4: Simplify right side
    21,487.67x = 412,678,423.67
  5. Step 5: Solve for x
    x = 412,678,423.67/21,487.67
  6. Step 6: Final answer
    x = 19,205.36

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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.