Home / 21,066.28-29,071.92-11,635.44

Finding the Fourth Proportional to 21,066.28, 29,071.92 and 11,635.44

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Solution

The fourth proportional to 21,066.28, 29,071.92 and 11,635.44 is: 16,057.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,066.28 : 29,071.92 = 11,635.44 : x
  2. Step 2: Convert to fraction form
    21,066.28/29,071.92 = 11,635.44/x
  3. Step 3: Cross multiply
    21,066.28x = 29,071.92 × 11,635.44
  4. Step 4: Simplify right side
    21,066.28x = 338,264,580.84
  5. Step 5: Solve for x
    x = 338,264,580.84/21,066.28
  6. Step 6: Final answer
    x = 16,057.16

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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.