Home / 21,433.30-29,577.09-12,481.06

Finding the Fourth Proportional to 21,433.30, 29,577.09 and 12,481.06

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Solution

The fourth proportional to 21,433.30, 29,577.09 and 12,481.06 is: 17,223.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,433.30 : 29,577.09 = 12,481.06 : x
  2. Step 2: Convert to fraction form
    21,433.30/29,577.09 = 12,481.06/x
  3. Step 3: Cross multiply
    21,433.30x = 29,577.09 × 12,481.06
  4. Step 4: Simplify right side
    21,433.30x = 369,153,434.92
  5. Step 5: Solve for x
    x = 369,153,434.92/21,433.30
  6. Step 6: Final answer
    x = 17,223.36

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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.