Home / 21,204.16-29,233.92-18,251.68

Finding the Fourth Proportional to 21,204.16, 29,233.92 and 18,251.68

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Solution

The fourth proportional to 21,204.16, 29,233.92 and 18,251.68 is: 25,163.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,204.16 : 29,233.92 = 18,251.68 : x
  2. Step 2: Convert to fraction form
    21,204.16/29,233.92 = 18,251.68/x
  3. Step 3: Cross multiply
    21,204.16x = 29,233.92 × 18,251.68
  4. Step 4: Simplify right side
    21,204.16x = 533,568,152.99
  5. Step 5: Solve for x
    x = 533,568,152.99/21,204.16
  6. Step 6: Final answer
    x = 25,163.37

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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.