Home / 21,304.50-29,398.95-11,745.69

Finding the Fourth Proportional to 21,304.50, 29,398.95 and 11,745.69

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Solution

The fourth proportional to 21,304.50, 29,398.95 and 11,745.69 is: 16,208.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,304.50 : 29,398.95 = 11,745.69 : x
  2. Step 2: Convert to fraction form
    21,304.50/29,398.95 = 11,745.69/x
  3. Step 3: Cross multiply
    21,304.50x = 29,398.95 × 11,745.69
  4. Step 4: Simplify right side
    21,304.50x = 345,310,953.03
  5. Step 5: Solve for x
    x = 345,310,953.03/21,304.50
  6. Step 6: Final answer
    x = 16,208.36

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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.