Home / 21,275.28-29,361.24-11,844.48

Finding the Fourth Proportional to 21,275.28, 29,361.24 and 11,844.48

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Solution

The fourth proportional to 21,275.28, 29,361.24 and 11,844.48 is: 16,346.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,275.28 : 29,361.24 = 11,844.48 : x
  2. Step 2: Convert to fraction form
    21,275.28/29,361.24 = 11,844.48/x
  3. Step 3: Cross multiply
    21,275.28x = 29,361.24 × 11,844.48
  4. Step 4: Simplify right side
    21,275.28x = 347,768,619.96
  5. Step 5: Solve for x
    x = 347,768,619.96/21,275.28
  6. Step 6: Final answer
    x = 16,346.14

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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.