Home / 21,873.16-30,173.16-18,073.86

Finding the Fourth Proportional to 21,873.16, 30,173.16 and 18,073.86

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Solution

The fourth proportional to 21,873.16, 30,173.16 and 18,073.86 is: 24,932.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,873.16 : 30,173.16 = 18,073.86 : x
  2. Step 2: Convert to fraction form
    21,873.16/30,173.16 = 18,073.86/x
  3. Step 3: Cross multiply
    21,873.16x = 30,173.16 × 18,073.86
  4. Step 4: Simplify right side
    21,873.16x = 545,345,318.73
  5. Step 5: Solve for x
    x = 545,345,318.73/21,873.16
  6. Step 6: Final answer
    x = 24,932.17

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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.