Home / 29,431.28-40,588.26-21,896.48

Finding the Fourth Proportional to 29,431.28, 40,588.26 and 21,896.48

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Solution

The fourth proportional to 29,431.28, 40,588.26 and 21,896.48 is: 30,197.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,431.28 : 40,588.26 = 21,896.48 : x
  2. Step 2: Convert to fraction form
    29,431.28/40,588.26 = 21,896.48/x
  3. Step 3: Cross multiply
    29,431.28x = 40,588.26 × 21,896.48
  4. Step 4: Simplify right side
    29,431.28x = 888,740,023.32
  5. Step 5: Solve for x
    x = 888,740,023.32/29,431.28
  6. Step 6: Final answer
    x = 30,197.12

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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.