Home / 22,631.88-31,230.59-13,674.09

Finding the Fourth Proportional to 22,631.88, 31,230.59 and 13,674.09

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Solution

The fourth proportional to 22,631.88, 31,230.59 and 13,674.09 is: 18,869.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,631.88 : 31,230.59 = 13,674.09 : x
  2. Step 2: Convert to fraction form
    22,631.88/31,230.59 = 13,674.09/x
  3. Step 3: Cross multiply
    22,631.88x = 31,230.59 × 13,674.09
  4. Step 4: Simplify right side
    22,631.88x = 427,049,830.04
  5. Step 5: Solve for x
    x = 427,049,830.04/22,631.88
  6. Step 6: Final answer
    x = 18,869.39

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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.