Home / 21,952.67-30,294.90-13,336.36

Finding the Fourth Proportional to 21,952.67, 30,294.90 and 13,336.36

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Solution

The fourth proportional to 21,952.67, 30,294.90 and 13,336.36 is: 18,404.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,952.67 : 30,294.90 = 13,336.36 : x
  2. Step 2: Convert to fraction form
    21,952.67/30,294.90 = 13,336.36/x
  3. Step 3: Cross multiply
    21,952.67x = 30,294.90 × 13,336.36
  4. Step 4: Simplify right side
    21,952.67x = 404,023,616.83
  5. Step 5: Solve for x
    x = 404,023,616.83/21,952.67
  6. Step 6: Final answer
    x = 18,404.31

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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.