Home / 21,892.26-30,211.20-12,332.12

Finding the Fourth Proportional to 21,892.26, 30,211.20 and 12,332.12

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Solution

The fourth proportional to 21,892.26, 30,211.20 and 12,332.12 is: 17,018.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,892.26 : 30,211.20 = 12,332.12 : x
  2. Step 2: Convert to fraction form
    21,892.26/30,211.20 = 12,332.12/x
  3. Step 3: Cross multiply
    21,892.26x = 30,211.20 × 12,332.12
  4. Step 4: Simplify right side
    21,892.26x = 372,567,992.69
  5. Step 5: Solve for x
    x = 372,567,992.69/21,892.26
  6. Step 6: Final answer
    x = 17,018.25

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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.