Home / 21,846.22-30,139.23-13,448.14

Finding the Fourth Proportional to 21,846.22, 30,139.23 and 13,448.14

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Solution

The fourth proportional to 21,846.22, 30,139.23 and 13,448.14 is: 18,553.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,846.22 : 30,139.23 = 13,448.14 : x
  2. Step 2: Convert to fraction form
    21,846.22/30,139.23 = 13,448.14/x
  3. Step 3: Cross multiply
    21,846.22x = 30,139.23 × 13,448.14
  4. Step 4: Simplify right side
    21,846.22x = 405,316,584.53
  5. Step 5: Solve for x
    x = 405,316,584.53/21,846.22
  6. Step 6: Final answer
    x = 18,553.17

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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.