Home / 20,523.85-30,725.79-18,554.01

Finding the Fourth Proportional to 20,523.85, 30,725.79 and 18,554.01

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Solution

The fourth proportional to 20,523.85, 30,725.79 and 18,554.01 is: 27,776.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,523.85 : 30,725.79 = 18,554.01 : x
  2. Step 2: Convert to fraction form
    20,523.85/30,725.79 = 18,554.01/x
  3. Step 3: Cross multiply
    20,523.85x = 30,725.79 × 18,554.01
  4. Step 4: Simplify right side
    20,523.85x = 570,086,368.52
  5. Step 5: Solve for x
    x = 570,086,368.52/20,523.85
  6. Step 6: Final answer
    x = 27,776.78

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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.