Home / 21,932.86-30,248.22-15,546.82

Finding the Fourth Proportional to 21,932.86, 30,248.22 and 15,546.82

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Solution

The fourth proportional to 21,932.86, 30,248.22 and 15,546.82 is: 21,441.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,932.86 : 30,248.22 = 15,546.82 : x
  2. Step 2: Convert to fraction form
    21,932.86/30,248.22 = 15,546.82/x
  3. Step 3: Cross multiply
    21,932.86x = 30,248.22 × 15,546.82
  4. Step 4: Simplify right side
    21,932.86x = 470,263,631.66
  5. Step 5: Solve for x
    x = 470,263,631.66/21,932.86
  6. Step 6: Final answer
    x = 21,441.05

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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.