Home / 22,628.88-31,226.45-13,671.09

Finding the Fourth Proportional to 22,628.88, 31,226.45 and 13,671.09

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Solution

The fourth proportional to 22,628.88, 31,226.45 and 13,671.09 is: 18,865.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,628.88 : 31,226.45 = 13,671.09 : x
  2. Step 2: Convert to fraction form
    22,628.88/31,226.45 = 13,671.09/x
  3. Step 3: Cross multiply
    22,628.88x = 31,226.45 × 13,671.09
  4. Step 4: Simplify right side
    22,628.88x = 426,899,539.98
  5. Step 5: Solve for x
    x = 426,899,539.98/22,628.88
  6. Step 6: Final answer
    x = 18,865.25

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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.