Home / 21,224.45-29,292.30-12,274.16

Finding the Fourth Proportional to 21,224.45, 29,292.30 and 12,274.16

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Solution

The fourth proportional to 21,224.45, 29,292.30 and 12,274.16 is: 16,939.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,224.45 : 29,292.30 = 12,274.16 : x
  2. Step 2: Convert to fraction form
    21,224.45/29,292.30 = 12,274.16/x
  3. Step 3: Cross multiply
    21,224.45x = 29,292.30 × 12,274.16
  4. Step 4: Simplify right side
    21,224.45x = 359,538,230.51
  5. Step 5: Solve for x
    x = 359,538,230.51/21,224.45
  6. Step 6: Final answer
    x = 16,939.81

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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.