Home / 21,475.57-29,632.87-13,932.25

Finding the Fourth Proportional to 21,475.57, 29,632.87 and 13,932.25

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Solution

The fourth proportional to 21,475.57, 29,632.87 and 13,932.25 is: 19,224.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,475.57 : 29,632.87 = 13,932.25 : x
  2. Step 2: Convert to fraction form
    21,475.57/29,632.87 = 13,932.25/x
  3. Step 3: Cross multiply
    21,475.57x = 29,632.87 × 13,932.25
  4. Step 4: Simplify right side
    21,475.57x = 412,852,553.06
  5. Step 5: Solve for x
    x = 412,852,553.06/21,475.57
  6. Step 6: Final answer
    x = 19,224.29

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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.