Home / 21,298.08-29,391.84-11,867.22

Finding the Fourth Proportional to 21,298.08, 29,391.84 and 11,867.22

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Solution

The fourth proportional to 21,298.08, 29,391.84 and 11,867.22 is: 16,377.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,298.08 : 29,391.84 = 11,867.22 : x
  2. Step 2: Convert to fraction form
    21,298.08/29,391.84 = 11,867.22/x
  3. Step 3: Cross multiply
    21,298.08x = 29,391.84 × 11,867.22
  4. Step 4: Simplify right side
    21,298.08x = 348,799,431.48
  5. Step 5: Solve for x
    x = 348,799,431.48/21,298.08
  6. Step 6: Final answer
    x = 16,377.04

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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.