Home / 21,222.97-31,832.61-7,182.68

Finding the Fourth Proportional to 21,222.97, 31,832.61 and 7,182.68

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Solution

The fourth proportional to 21,222.97, 31,832.61 and 7,182.68 is: 10,773.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,222.97 : 31,832.61 = 7,182.68 : x
  2. Step 2: Convert to fraction form
    21,222.97/31,832.61 = 7,182.68/x
  3. Step 3: Cross multiply
    21,222.97x = 31,832.61 × 7,182.68
  4. Step 4: Simplify right side
    21,222.97x = 228,643,499.36
  5. Step 5: Solve for x
    x = 228,643,499.36/21,222.97
  6. Step 6: Final answer
    x = 10,773.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.