Home / 22,046.88-30,421.80-13,553.40

Finding the Fourth Proportional to 22,046.88, 30,421.80 and 13,553.40

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Solution

The fourth proportional to 22,046.88, 30,421.80 and 13,553.40 is: 18,701.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,046.88 : 30,421.80 = 13,553.40 : x
  2. Step 2: Convert to fraction form
    22,046.88/30,421.80 = 13,553.40/x
  3. Step 3: Cross multiply
    22,046.88x = 30,421.80 × 13,553.40
  4. Step 4: Simplify right side
    22,046.88x = 412,318,824.12
  5. Step 5: Solve for x
    x = 412,318,824.12/22,046.88
  6. Step 6: Final answer
    x = 18,701.91

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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.