Home / 21,101.64-29,119.84-11,541.27

Finding the Fourth Proportional to 21,101.64, 29,119.84 and 11,541.27

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Solution

The fourth proportional to 21,101.64, 29,119.84 and 11,541.27 is: 15,926.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,101.64 : 29,119.84 = 11,541.27 : x
  2. Step 2: Convert to fraction form
    21,101.64/29,119.84 = 11,541.27/x
  3. Step 3: Cross multiply
    21,101.64x = 29,119.84 × 11,541.27
  4. Step 4: Simplify right side
    21,101.64x = 336,079,935.80
  5. Step 5: Solve for x
    x = 336,079,935.80/21,101.64
  6. Step 6: Final answer
    x = 15,926.72

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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.