Home / 28,590.20-39,441.21-18,522.03

Finding the Fourth Proportional to 28,590.20, 39,441.21 and 18,522.03

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Solution

The fourth proportional to 28,590.20, 39,441.21 and 18,522.03 is: 25,551.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,590.20 : 39,441.21 = 18,522.03 : x
  2. Step 2: Convert to fraction form
    28,590.20/39,441.21 = 18,522.03/x
  3. Step 3: Cross multiply
    28,590.20x = 39,441.21 × 18,522.03
  4. Step 4: Simplify right side
    28,590.20x = 730,531,274.86
  5. Step 5: Solve for x
    x = 730,531,274.86/28,590.20
  6. Step 6: Final answer
    x = 25,551.81

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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.