Home / 21,274.08-29,360.16-11,844.96

Finding the Fourth Proportional to 21,274.08, 29,360.16 and 11,844.96

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Solution

The fourth proportional to 21,274.08, 29,360.16 and 11,844.96 is: 16,347.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,274.08 : 29,360.16 = 11,844.96 : x
  2. Step 2: Convert to fraction form
    21,274.08/29,360.16 = 11,844.96/x
  3. Step 3: Cross multiply
    21,274.08x = 29,360.16 × 11,844.96
  4. Step 4: Simplify right side
    21,274.08x = 347,769,920.79
  5. Step 5: Solve for x
    x = 347,769,920.79/21,274.08
  6. Step 6: Final answer
    x = 16,347.12

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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.