Home / 21,434.25-29,579.28-12,003.03

Finding the Fourth Proportional to 21,434.25, 29,579.28 and 12,003.03

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Solution

The fourth proportional to 21,434.25, 29,579.28 and 12,003.03 is: 16,564.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,434.25 : 29,579.28 = 12,003.03 : x
  2. Step 2: Convert to fraction form
    21,434.25/29,579.28 = 12,003.03/x
  3. Step 3: Cross multiply
    21,434.25x = 29,579.28 × 12,003.03
  4. Step 4: Simplify right side
    21,434.25x = 355,040,985.22
  5. Step 5: Solve for x
    x = 355,040,985.22/21,434.25
  6. Step 6: Final answer
    x = 16,564.19

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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.