Home / 21,244.97-31,840.18-8,773.74

Finding the Fourth Proportional to 21,244.97, 31,840.18 and 8,773.74

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Solution

The fourth proportional to 21,244.97, 31,840.18 and 8,773.74 is: 13,149.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,244.97 : 31,840.18 = 8,773.74 : x
  2. Step 2: Convert to fraction form
    21,244.97/31,840.18 = 8,773.74/x
  3. Step 3: Cross multiply
    21,244.97x = 31,840.18 × 8,773.74
  4. Step 4: Simplify right side
    21,244.97x = 279,357,438.94
  5. Step 5: Solve for x
    x = 279,357,438.94/21,244.97
  6. Step 6: Final answer
    x = 13,149.34

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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.