Home / 20,310.56-30,318.70-17,554.94

Finding the Fourth Proportional to 20,310.56, 30,318.70 and 17,554.94

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Solution

The fourth proportional to 20,310.56, 30,318.70 and 17,554.94 is: 26,205.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,310.56 : 30,318.70 = 17,554.94 : x
  2. Step 2: Convert to fraction form
    20,310.56/30,318.70 = 17,554.94/x
  3. Step 3: Cross multiply
    20,310.56x = 30,318.70 × 17,554.94
  4. Step 4: Simplify right side
    20,310.56x = 532,242,959.38
  5. Step 5: Solve for x
    x = 532,242,959.38/20,310.56
  6. Step 6: Final answer
    x = 26,205.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.