Home / 21,229.32-29,295.66-11,798.49

Finding the Fourth Proportional to 21,229.32, 29,295.66 and 11,798.49

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Solution

The fourth proportional to 21,229.32, 29,295.66 and 11,798.49 is: 16,281.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,229.32 : 29,295.66 = 11,798.49 : x
  2. Step 2: Convert to fraction form
    21,229.32/29,295.66 = 11,798.49/x
  3. Step 3: Cross multiply
    21,229.32x = 29,295.66 × 11,798.49
  4. Step 4: Simplify right side
    21,229.32x = 345,644,492.56
  5. Step 5: Solve for x
    x = 345,644,492.56/21,229.32
  6. Step 6: Final answer
    x = 16,281.47

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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.