Home / 20,537.85-30,821.37-18,554.97

Finding the Fourth Proportional to 20,537.85, 30,821.37 and 18,554.97

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Solution

The fourth proportional to 20,537.85, 30,821.37 and 18,554.97 is: 27,845.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,537.85 : 30,821.37 = 18,554.97 : x
  2. Step 2: Convert to fraction form
    20,537.85/30,821.37 = 18,554.97/x
  3. Step 3: Cross multiply
    20,537.85x = 30,821.37 × 18,554.97
  4. Step 4: Simplify right side
    20,537.85x = 571,889,595.71
  5. Step 5: Solve for x
    x = 571,889,595.71/20,537.85
  6. Step 6: Final answer
    x = 27,845.64

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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.