Home / 21,224.78-29,291.10-11,793.32

Finding the Fourth Proportional to 21,224.78, 29,291.10 and 11,793.32

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Solution

The fourth proportional to 21,224.78, 29,291.10 and 11,793.32 is: 16,275.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,224.78 : 29,291.10 = 11,793.32 : x
  2. Step 2: Convert to fraction form
    21,224.78/29,291.10 = 11,793.32/x
  3. Step 3: Cross multiply
    21,224.78x = 29,291.10 × 11,793.32
  4. Step 4: Simplify right side
    21,224.78x = 345,439,315.45
  5. Step 5: Solve for x
    x = 345,439,315.45/21,224.78
  6. Step 6: Final answer
    x = 16,275.28

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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.